Take notes on the command line
You are encouraged to solve this task according to the task description, using any language you may know.
Invoking NOTES without commandline arguments displays the current contents of the local NOTES.TXT if it exists. If NOTES has arguments, the current date and time are appended to the local NOTES.TXT followed by a newline. Then all the arguments, joined with spaces, prepended with a tab, and appended with a trailing newline, are written to NOTES.TXT. If NOTES.TXT doesn't already exist in the current directory then a new NOTES.TXT file should be created.
Ada
<lang Ada>with Ada.Calendar.Formatting; with Ada.Characters.Latin_1; with Ada.Command_Line; with Ada.IO_Exceptions; with Ada.Text_IO; procedure Notes is
Notes_Filename : constant String := "notes.txt"; Notes_File : Ada.Text_IO.File_Type; Argument_Count : Natural := Ada.Command_Line.Argument_Count;
begin
if Argument_Count = 0 then
begin
Ada.Text_IO.Open
(File => Notes_File,
Mode => Ada.Text_IO.In_File,
Name => Notes_Filename);
while not Ada.Text_IO.End_Of_File (File => Notes_File) loop
Ada.Text_IO.Put_Line (Ada.Text_IO.Get_Line (File => Notes_File));
end loop;
exception
when Ada.IO_Exceptions.Name_Error =>
null;
end;
else
begin
Ada.Text_IO.Open
(File => Notes_File,
Mode => Ada.Text_IO.Append_File,
Name => Notes_Filename);
exception
when Ada.IO_Exceptions.Name_Error =>
Ada.Text_IO.Create (File => Notes_File, Name => Notes_Filename);
end;
Ada.Text_IO.Put_Line
(File => Notes_File,
Item => Ada.Calendar.Formatting.Image (Date => Ada.Calendar.Clock));
Ada.Text_IO.Put (File => Notes_File, Item => Ada.Characters.Latin_1.HT);
for I in 1 .. Argument_Count loop
Ada.Text_IO.Put
(File => Notes_File,
Item => Ada.Command_Line.Argument (I));
if I /= Argument_Count then
Ada.Text_IO.Put (File => Notes_File, Item => ' ');
end if;
end loop;
Ada.Text_IO.Flush (File => Notes_File);
end if;
if Ada.Text_IO.Is_Open (File => Notes_File) then
Ada.Text_IO.Close (File => Notes_File);
end if;
end Notes;</lang>
Aime
<lang aime>#! /usr/local/bin/aime -a
if (argc() == 1) {
file f; text s;
f.open("NOTES.TXT", OPEN_READONLY, 0);
while (f.line(s) != -1) {
o_(s, "\n");
}
} else {
integer i; date d; file f;
f.open("NOTES.TXT", OPEN_APPEND | OPEN_CREATE | OPEN_WRITEONLY, 0644);
d.now;
f.form("/f4/-/f2/-/f2/ /f2/:/f2/:/f2/\n", d.year, d.y_month,
d.m_day, d.d_hour, d.h_minute, d.m_second);
i = 0;
while ((i += 1) < argc()) {
f.byte(i == 1 ? '\t' : ' ');
f.text(argv(i));
}
f.byte('\n');
}</lang>
AppleScript
Requires a modernish version of OS X (Lion or later) on which osascript works as a shebang interpreter. <lang applescript>#!/usr/bin/osascript
-- format a number as a string with leading zero if needed to format(aNumber)
set resultString to aNumber as text if length of resultString < 2 set resultString to "0" & resultString end if return resultString
end format
-- join a list with a delimiter to concatenation of aList given delimiter:aDelimiter
set tid to AppleScript's text item delimiters
set AppleScript's text item delimiters to { aDelimiter }
set resultString to aList as text
set AppleScript's text item delimiters to tid
return resultString
end join
-- apply a handler to every item in a list, returning -- a list of the results to mapping of aList given function:aHandler
set resultList to {}
global h
set h to aHandler
repeat with anItem in aList
set resultList to resultList & h(anItem)
end repeat
return resultList
end mapping
-- return an ISO-8601-formatted string representing the current date and time -- in UTC to iso8601()
set { year:y, month:m, day:d, ¬
hours:hr, minutes:min, seconds:sec } to ¬
(current date) - (time to GMT)
set ymdList to the mapping of { y, m as integer, d } given function:format
set ymd to the concatenation of ymdList given delimiter:"-"
set hmsList to the mapping of { hr, min, sec } given function:format
set hms to the concatenation of hmsList given delimiter:":"
set dateTime to the concatenation of {ymd, hms} given delimiter:"T"
return dateTime & "Z"
end iso8601
to exists(filePath)
try filePath as alias return true on error return false end try
end exists
on run argv
set curDir to (do shell script "pwd") set notesFile to POSIX file (curDir & "/NOTES.TXT")
if (count argv) is 0 then
if exists(notesFile) then
set text item delimiters to {linefeed}
return paragraphs of (read notesFile) as text
else
log "No notes here."
return
end if
else
try
set fd to open for access notesFile with write permission
write (iso8601() & linefeed & tab) to fd starting at eof
set AppleScript's text item delimiters to {" "}
write ((argv as text) & linefeed) to fd starting at eof
close access fd
return true
on error errMsg number errNum
try
close access fd
end try
return "unable to open " & notesFile & ": " & errMsg
end try
end if
end run</lang>
AutoHotkey
<lang autohotkey>Notes := "Notes.txt"
If 0 = 0 ; no arguments {
If FileExist(Notes) {
FileRead, Content, %Notes%
MsgBox, %Content%
} Else
MsgBox, %Notes% does not exist
Goto, EOF
}
- date and time, colon, newline (CRLF), tab
Date := A_DD "/" A_MM "/" A_YYYY Time := A_Hour ":" A_Min ":" A_Sec "." A_MSec FileAppend, %Date% %Time%:`r`n%A_Tab%, %Notes%
- command line parameters, trailing newline (CRLF)
Loop, %0%
FileAppend, % %A_Index% " ", %Notes%
FileAppend, `r`n, %Notes%
EOF:</lang>
AWK
<lang AWK>
- syntax: GAWK -f TAKE_NOTES.AWK [notes ... ]
- examples:
- GAWK -f TAKE_NOTES.AWK Hello world
- GAWK -f TAKE_NOTES.AWK A "B C" D
- GAWK -f TAKE_NOTES.AWK
BEGIN {
log_name = "NOTES.TXT" (ARGC == 1) ? show_log() : update_log() exit(0)
} function show_log( rec) {
while (getline rec <log_name > 0) {
printf("%s\n",rec)
}
} function update_log( i,q) {
print(strftime("%Y-%m-%d %H:%M:%S")) >>log_name
printf("\t") >>log_name
for (i=1; i<=ARGC-1; i++) {
q = (ARGV[i] ~ / /) ? "\"" : ""
printf("%s%s%s ",q,ARGV[i],q) >>log_name
}
printf("\n") >>log_name
} </lang>
- Output:
from the three example commands
2013-09-20 00:35:41
Hello world
2013-09-20 00:35:41
A "B C" D
BASIC
An implementation of DIR$ is all that's required
for this to work with older versions of QB.
<lang qbasic>IF LEN(COMMAND$) THEN
OPEN "notes.txt" FOR APPEND AS 1 PRINT #1, DATE$, TIME$ PRINT #1, CHR$(9); COMMAND$ CLOSE
ELSE
d$ = DIR$("notes.txt")
IF LEN(d$) THEN
OPEN d$ FOR INPUT AS 1
WHILE NOT EOF(1)
LINE INPUT #1, i$
PRINT i$
WEND
CLOSE
END IF
END IF</lang>
Batch File
<lang dos>@echo off if %1@==@ (
if exist notes.txt more notes.txt goto :eof
) echo %date% %time%:>>notes.txt echo %*>>notes.txt</lang>
BBC BASIC
This must be compiled to an EXE and run from the command prompt. <lang bbcbasic> REM!Exefile C:\NOTES.EXE, encrypt, console
REM!Embed
LF = 10
SYS "GetStdHandle", -10 TO @hfile%(1)
SYS "GetStdHandle", -11 TO @hfile%(2)
SYS "SetConsoleMode", @hfile%(1), 0
*INPUT 13
*OUTPUT 14
ON ERROR PRINT REPORT$ : QUIT ERR
notes% = OPENUP(@dir$ + "NOTES.TXT")
IF notes% = 0 notes% = OPENOUT(@dir$ + "NOTES.TXT")
IF notes% = 0 PRINT "Cannot open or create NOTES.TXT" : QUIT 1
IF @cmd$ = "" THEN
WHILE NOT EOF#notes%
INPUT #notes%, text$
IF ASC(text$) = LF text$ = MID$(text$,2)
PRINT text$
ENDWHILE
ELSE
PTR#notes% = EXT#notes%
PRINT #notes%,TIME$ : BPUT#notes%,LF
PRINT #notes%,CHR$(9) + @cmd$ : BPUT#notes%,LF
ENDIF
CLOSE #notes%
QUIT</lang>
C
<lang c>#include <stdio.h>
- include <time.h>
- define note_file "NOTES.TXT"
int main(int argc, char**argv) { FILE *note = 0; time_t tm; int i; char *p;
if (argc < 2) { if ((note = fopen(note_file, "r"))) while ((i = fgetc(note)) != EOF) putchar(i);
} else if ((note = fopen(note_file, "a"))) { tm = time(0); p = ctime(&tm);
/* skip the newline */ while (*p) fputc(*p != '\n'?*p:'\t', note), p++;
for (i = 1; i < argc; i++) fprintf(note, "%s%c", argv[i], 1 + i - argc ? ' ' : '\n'); }
if (note) fclose(note); return 0; }</lang>
C++
<lang cpp>#include <fstream>
- include <iostream>
- include <ctime>
using namespace std;
- define note_file "NOTES.TXT"
int main(int argc, char **argv) { if(argc>1) { ofstream Notes(note_file, ios::app); time_t timer = time(NULL); if(Notes.is_open()) { Notes << asctime(localtime(&timer)) << '\t'; for(int i=1;i<argc;i++) Notes << argv[i] << ' '; Notes << endl; Notes.close(); } } else { ifstream Notes(note_file, ios::in); string line; if(Notes.is_open()) { while(!Notes.eof()) { getline(Notes, line); cout << line << endl; } Notes.close(); } } }</lang>
C#
<lang csharp>using System; using System.IO; using System.Text;
namespace RosettaCode {
internal class Program
{
private const string FileName = "NOTES.TXT";
private static void Main(string[] args)
{
if (args.Length==0)
{
string txt = File.ReadAllText(FileName);
Console.WriteLine(txt);
}
else
{
var sb = new StringBuilder();
sb.Append(DateTime.Now).Append("\n\t");
foreach (string s in args)
sb.Append(s).Append(" ");
sb.Append("\n");
if (File.Exists(FileName))
File.AppendAllText(FileName, sb.ToString());
else
File.WriteAllText(FileName, sb.ToString());
}
}
}
}</lang>
Clojure
<lang clojure>(ns rosettacode.notes
(:use [clojure.string :only [join]]))
(defn notes [notes]
(if (seq notes)
(spit
"NOTES.txt"
(str (java.util.Date.) "\n" "\t"
(join " " notes) "\n")
:append true)
(println (slurp "NOTES.txt"))))
(notes *command-line-args*)</lang>
- Output:
rayne@ubuntu:~/cljprojs/rosettacode$ java -cp 'lib/*' clojure.main src/rosettacode/notes.clj I tawt I taw a puddy cat! rayne@ubuntu:~/cljprojs/rosettacode$ java -cp 'lib/*' clojure.main src/rosettacode/notes.clj I did! I did! rayne@ubuntu:~/cljprojs/rosettacode$ cat NOTES.txt Wed Dec 29 14:09:24 CST 2010 I tawt I taw a puddy cat! Wed Dec 29 14:09:28 CST 2010 I did! I did! rayne@ubuntu:~/cljprojs/rosettacode$ java -cp 'lib/*' clojure.main src/rosettacode/notes.clj Wed Dec 29 14:09:24 CST 2010 I tawt I taw a puddy cat! Wed Dec 29 14:09:28 CST 2010 I did! I did!
COBOL
<lang cobol> IDENTIFICATION DIVISION.
PROGRAM-ID. NOTES.
ENVIRONMENT DIVISION.
INPUT-OUTPUT SECTION.
FILE-CONTROL.
SELECT OPTIONAL notes ASSIGN TO "NOTES.TXT"
ORGANIZATION LINE SEQUENTIAL
FILE STATUS note-status.
DATA DIVISION.
FILE SECTION.
FD notes.
01 note-record PIC X(256).
LOCAL-STORAGE SECTION.
01 note-status PIC 99.
88 notes-ok VALUE 0 THRU 9.
01 date-now.
03 current-year PIC 9(4).
03 current-month PIC 99.
03 current-day PIC 99.
01 time-now.
03 current-hour PIC 99.
03 current-min PIC 99.
03 current-sec PIC 99.
01 args PIC X(256).
PROCEDURE DIVISION.
DECLARATIVES.
note-error SECTION.
USE AFTER STANDARD ERROR PROCEDURE ON notes.
DISPLAY "Error using NOTES.TXT. Error code: " note-status
.
END DECLARATIVES.
main.
ACCEPT args FROM COMMAND-LINE
- *> If there are no args, display contents of NOTES.TXT.
IF args = SPACES
OPEN INPUT notes
PERFORM FOREVER
- *> READ has no syntax highlighting, but END-READ does.
- *> Go figure.
READ notes
AT END
EXIT PERFORM
NOT AT END
DISPLAY FUNCTION TRIM(note-record)
END-READ
END-PERFORM
ELSE
OPEN EXTEND notes
- *> Write date and time to file.
ACCEPT date-now FROM DATE YYYYMMDD
ACCEPT time-now FROM TIME
STRING current-year "-" current-month "-" current-day
" " current-hour ":" current-min ":" current-sec
INTO note-record
WRITE note-record
- *> Write arguments to file as they were passed.
STRING X"09", args INTO note-record
WRITE note-record
END-IF
CLOSE notes
GOBACK
.</lang>
Common Lisp
<lang lisp>(defparameter *notes* "NOTES.TXT")
(defun format-date-time (stream)
(multiple-value-bind (second minute hour date month year) (get-decoded-time)
(format stream "~D-~2,'0D-~2,'0D ~2,'0D:~2,'0D:~2,'0D"
year month date hour minute second)))
(defun notes (args)
(if args
(with-open-file (s *notes* :direction :output
:if-exists :append
:if-does-not-exist :create)
(format-date-time s)
(format s "~&~A~{~A~^ ~}~%" #\Tab args))
(with-open-file (s *notes* :if-does-not-exist nil)
(when s
(loop for line = (read-line s nil)
while line
do (write-line line))))))
(defun main ()
(notes (uiop:command-line-arguments)))</lang>
D
<lang d>void main(in string[] args) {
import std.stdio, std.file, std.datetime, std.range;
immutable filename = "NOTES.TXT";
if (args.length == 1) {
if (filename.exists && filename.isFile)
writefln("%-(%s\n%)", filename.File.byLine);
} else {
auto f = File(filename, "a+");
f.writefln("%s", cast(DateTime)Clock.currTime);
f.writefln("\t%-(%s %)", args.dropOne);
}
}</lang>
- Output:
C:\>notes Permission to speak, sir!
C:\>notes They don't like it up 'em, sir, they don't like it up 'em!
C:\>notes Don't panic! DON'T PANIC!
C:\>notes
2013-Mar-01 17:50:38
Permission to speak, sir!
2013-Mar-01 17:51:00
They don't like it up 'em, sir, they don't like it up 'em!
2013-Mar-01 17:52:18
Don't panic! DON'T PANIC!
Delphi
<lang delphi>program notes;
{$APPTYPE CONSOLE}
uses
Classes, SysUtils, IOUtils;
const
FILENAME = 'NOTES.TXT'; TAB = #9;
var
sw: TStreamWriter; i : integer;
begin
if ParamCount = 0 then
begin
if TFile.Exists(FILENAME) then
write(TFile.ReadAllText(FILENAME));
end
else
begin
if TFile.Exists(FILENAME) then
sw := TFile.AppendText(FILENAME)
else
sw := TFile.CreateText(FILENAME);
sw.Write(FormatDateTime('yyyy-mm-dd hh:nn',Now));
sw.Write(TAB);
for i := 1 to ParamCount do
begin
sw.Write(ParamStr(i));
if i < ParamCount then
sw.Write(' ');
end;
sw.WriteLine;
sw.Free;
end;
end.</lang>
E
<lang e>#!/usr/bin/env rune
def f := <file:notes.txt> def date := makeCommand("date")
switch (interp.getArgs()) {
match [] {
if (f.exists()) {
for line in f { print(line) }
}
}
match noteArgs {
def w := f.textWriter(true)
w.print(date()[0], "\t", " ".rjoin(noteArgs), "\n")
w.close()
}
}</lang>
Elixir
<lang elixir>defmodule Take_notes do
@filename "NOTES.TXT" def main( [] ), do: display_notes def main( arguments ), do: save_notes( arguments ) def display_notes, do: IO.puts File.read!(@filename)
def save_notes( arguments ) do
notes = "#{inspect :calendar.local_time}\n\t" <> Enum.join(arguments, " ")
File.open!(@filename, [:append], fn(file) -> IO.puts(file, notes) end)
end
end
Take_notes.main(System.argv)</lang>
Erlang
<lang Erlang>
- ! /usr/bin/env escript
main( Arguments ) -> display_notes( Arguments ), save_notes( Arguments ).
display_notes( [] ) -> io:fwrite( "~s", [erlang:binary_to_list(file_contents())] ); display_notes( _Arguments ) -> ok.
file() -> "NOTES.TXT".
file_contents() -> file_contents( file:read_file(file()) ).
file_contents( {ok, Binary} ) -> Binary; file_contents( {error, _Error} ) -> <<>>.
save_notes( [] ) -> ok; save_notes( Arguments ) -> Date = io_lib:format( "~p~n", [calendar:local_time()] ), Notes = [Date ++ "\t" | [io_lib:format( "~s ", [X]) || X <- Arguments]], Existing_contents = file_contents(), file:write_file( file(), [Existing_contents, Notes, "\n"] ). </lang>
Euphoria
<lang Euphoria>constant cmd = command_line() constant filename = "notes.txt" integer fn object line sequence date_time
if length(cmd) < 3 then
fn = open(filename,"r")
if fn != -1 then
while 1 do
line = gets(fn)
if atom(line) then
exit
end if
puts(1,line)
end while
close(fn)
end if
else
fn = open(filename,"a") -- if such file doesn't exist it will be created
date_time = date()
date_time = date_time[1..6]
date_time[1] += 1900
printf(fn,"%d-%02d-%02d %d:%02d:%02d\n",date_time)
line = "\t"
for n = 3 to length(cmd) do
line &= cmd[n] & ' '
end for
line[$] = '\n'
puts(fn,line)
close(fn)
end if</lang>
F#
<lang fsharp>open System;; open System.IO;;
let file_path = "notes.txt";;
let show_notes () =
try
printfn "%s" <| File.ReadAllText(file_path)
with
_ -> printfn "Take some notes first!";;
let take_note (note : string) =
let now = DateTime.Now.ToString() in
let note = sprintf "%s\n\t%s" now note in
use file_stream = File.AppendText file_path in (* 'use' closes file_stream automatically when control leaves the scope *)
file_stream.WriteLine note;;
[<EntryPoint>] let main args =
match Array.length args with
| 0 -> show_notes()
| _ -> take_note <| String.concat " " args;
0;;</lang>
Usage:
> .\TakeNotes.exe
Take some notes first!
> .\TakeNotes.exe some note with multiple words
> .\TakeNotes.exe another note, with coma in it
> .\TakeNotes.exe
2011-10-15 20:36:52
some note with multiple words
2011-10-15 20:37:22
another note with coma in it
Factor
<lang factor>#! /usr/bin/env factor USING: kernel calendar calendar.format io io.encodings.utf8 io.files sequences command-line namespaces ;
command-line get [
"notes.txt" utf8 file-contents print
] [
" " join "\t" prepend
"notes.txt" utf8 [
now timestamp>ymdhms print
print flush
] with-file-appender
] if-empty</lang>
Fantom
<lang fantom> class Notes {
public static Void main (Str[] args)
{
notesFile := File(`notes.txt`) // the backticks make a URI
if (args.isEmpty)
{
if (notesFile.exists)
{
notesFile.eachLine |line| { echo (line) }
}
}
else
{
// notice the following uses a block so the 'printLine/close'
// operations are all applied to the same output stream for notesFile
notesFile.out(true) // 'true' to append to file
{
printLine ( DateTime.now.toLocale("DD-MM-YY hh:mm:ss").toStr )
printLine ( "\t" + args.join(" ") )
close
}
}
}
} </lang>
Sample:
$ fan notes.fan started notes file $ fan notes.fan added second set of notes $ fan notes.fan and a third $ fan notes.fan 30-01-11 12:30:05 started notes file 30-01-11 12:30:17 added second set of notes 30-01-11 12:30:30 and a third
Forth
The following is SwiftForth-specific, and runs in the Forth environment rather than as a standalone terminal application. Win32Forth only needs simple replacements of DATE and TIME . A Unix Forth would come closer to the 'commandline' requirement, as Windows Forths for whatever reason very eagerly discard the Windows console. Because this runs in the Forth environment, the otherwise acceptable application words are stuffed in a wordlist. Standard Forth doesn't have the notion of create-it-if-it-doesn't-exist, so OPEN just tries again with CREATE-FILE if OPEN-FILE fails.
<lang forth>vocabulary note-words get-current also note-words definitions
\ -- notes.txt variable file
- open s" notes.txt" r/w open-file if
s" notes.txt" r/w create-file throw then file ! ;
- appending file @ file-size throw file @ reposition-file throw ;
- write file @ write-file throw ;
- close file @ close-file throw ;
\ -- SwiftForth console workaround 9 constant TAB
- type ( c-addr u -- )
bounds ?do i c@ dup TAB = if drop 8 spaces else emit then loop ;
\ -- dump notes.txt create buf 4096 allot
- dump ( -- )
cr begin buf 4096 file @ read-file throw dup while buf swap type repeat drop ;
\ -- time and date
- time @time (time) ;
- date @date (date) ;
\ -- add note
- cr s\" \n" write ;
- tab s\" \t" write ;
- space s" " write ;
- add-note ( c-addr u -- ) appending
date write space time write cr tab ( note ) write cr ;
set-current
\ -- note
- note ( "note" -- )
open 0 parse dup if add-note else 2drop dump then close ;
previous</lang> The following is exactly the same program, but written in 4tH. 4tH has an I/O system which is different from ANS-Forth. The notes file is specified on the commandline. <lang forth>\ -- notes.txt include lib/argopen.4th include lib/ansfacil.4th
\ -- dump notes.txt 4096 buffer: buf
- dump ( -- )
input 1 arg-open begin buf dup 4096 accept dup while type repeat drop drop close ;
\ -- time and date
- :00 <# # # [char] : hold #> type ;
- -00 <# # # [char] - hold #> type ;
- .time 0 .r :00 :00 ;
- .date 0 .r -00 -00 ;
\ -- add note
- add-note ( c-addr u -- )
output append [+] 1 arg-open -rot time&date .date space .time cr 9 emit type cr close ;
\ -- note
- note ( "note" -- )
argn 2 < abort" Usage: notes filename" refill drop 0 parse dup if add-note else 2drop dump then ;
note</lang>
Gambas
<lang gambas>'Note that the 1st item in 'Args' is the file name as on the command line './CLIOnly.gambas'
Public Sub Main() Dim sContents As String 'To store the file contents Dim sArgs As String[] = Args.All 'To store all the Command line Arguments
If Not Exist(User.home &/ "NOTES.TXT") Then 'If NOTES.TXT doesn't already exist in the current directory then..
File.Save(User.home &/ "NOTES.TXT", "") 'a new NOTES.TXT file should be created. Print "New file 'NOTES.TXT' created." 'A meassge
Endif
sContents = File.Load(User.home &/ "NOTES.TXT") 'Get the contents of the file
If Args.count < 2 Then 'If NOTES has arguments (other than the file name)
Print sContents 'Print the file contents
Else
sContents &= Format(Now, "dddd dd mmmm, yyyy, hh:nn:ss") & gb.NewLine & 'The current date and time are appended to the local NOTES.TXT followed by a newline and..
gb.Tab & sArgs.Join(" ") & gb.NewLine 'Then all the arguments, joined with spaces, prepended with a tab, and appended with a trailing newline
Print sContents 'Displays the current contents of the local NOTES.TXT
File.Save(User.home &/ "NOTES.TXT", sContents) 'Write contents to NOTES.TXT
Endif
End</lang> Output:
Wednesday 24 May, 2017, 17:55:56 ./CLIOnly.gambas Hello to Wednesday 24 May, 2017, 17:55:58 ./CLIOnly.gambas Hello to you all
Go
<lang go>package main
import ( "fmt" "io" "os" "strings" "time" )
func addNote(fn string, note string) error { f, err := os.OpenFile(fn, os.O_RDWR|os.O_APPEND|os.O_CREATE, 0666) if err != nil { return err } _, err = fmt.Fprint(f, time.Now().Format(time.RFC1123), "\n\t", note, "\n") // To be extra careful with errors from Close(): if cErr := f.Close(); err == nil { err = cErr } return err }
func showNotes(w io.Writer, fn string) error { f, err := os.Open(fn) if err != nil { if os.IsNotExist(err) { return nil // don't report "no such file" } return err } _, err = io.Copy(w, f) f.Close() return err }
func main() { const fn = "NOTES.TXT" var err error if len(os.Args) > 1 { err = addNote(fn, strings.Join(os.Args[1:], " ")) } else { err = showNotes(os.Stdout, fn) } if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(1) } }</lang>
Groovy
<lang groovy>def notes = new File('./notes.txt') if (args) {
notes << "${new Date().format('YYYY-MM-dd HH:mm:ss')}\t${args.join(' ')}\n"
} else {
println notes.text
} </lang>
Haskell
<lang haskell>import System.Environment (getArgs) import System.Time (getClockTime)
main :: IO () main = do
args <- getArgs
if null args
then catch (readFile "notes.txt" >>= putStr)
(\_ -> return ())
else
do ct <- getClockTime
appendFile "notes.txt" $ show ct ++ "\n\t" ++ unwords args ++ "\n"</lang>
- Output:
after a few runs
Thu Apr 22 19:01:41 PDT 2010 Test line 1. Thu Apr 22 19:01:45 PDT 2010 Test line 2.
HicEst
<lang HicEst>SYSTEM(RUN) ! start this script in RUN-mode
CHARACTER notes="Notes.txt", txt*1000
! Remove file name from the global variable $CMD_LINE: EDIT(Text=$CMD_LINE, Mark1, Right=".hic ", Right=4, Mark2, Delete)
IF($CMD_LINE == ' ') THEN
READ(FIle=notes, LENgth=Lnotes) IF( Lnotes ) THEN WINDOW(WINdowhandle=hdl, TItle=notes) WRITE(Messagebox="?Y") "Finished ?" ENDIF
ELSE
WRITE(Text=txt, Format="UWWW CCYY-MM-DD HH:mm:SS, A") 0, $CRLF//$TAB//TRIM($CMD_LINE)//$CRLF OPEN(FIle=notes, APPend) WRITE(FIle=notes, CLoSe=1) txt
ENDIF
ALARM(999) ! quit HicEst immediately</lang>
Thu 2010-09-16 18:42:15 This is line 1 Thu 2010-09-16 18:42:23 This is line 2
Icon and Unicon
<lang Icon> procedure write_out_notes (filename)
file := open (filename, "rt") | stop ("no notes file yet")
every write (!file)
end
procedure add_to_notes (filename, strs)
file := open (filename, "at") | # append to file if it exists
open (filename, "cat") | # create the file if not there
stop ("unable to open " || filename)
writes (file, ctime(&now) || "\n\t")
every writes (file, !strs || " ")
write (file, "")
end
procedure main (args)
notes_file := "notes.txt" if *args = 0 then write_out_notes (notes_file) else add_to_notes (notes_file, args)
end </lang>
- Output:
$ ./take-notes no notes file yet $ ./take-notes finished notes program $ ./take-notes Thu Jun 2 23:39:49 2011 finished notes program $ ./take-notes for Unicon $ ./take-notes Thu Jun 2 23:39:49 2011 finished notes program Thu Jun 2 23:40:13 2011 for Unicon
J
Solution:
<lang j>require 'files strings'
notes=: monad define
if. #y do. now=. LF ,~ 6!:0 'hh:mm:ss DD/MM/YYYY' 'notes.txt' fappend~ now, LF ,~ TAB, ' ' joinstring y elseif. -. _1 -: txt=. fread 'notes.txt' do. smoutput txt end.
)
notes 2}.ARGV exit 0</lang>
Create a Shortcut called Notes that calls the script above using the Target:
"c:\program files\j602\bin\jconsole.exe" path\to\script\notes.ijs
and Start in: .\
Example Use:
In a Windows CMD session...
C:\Folder>Notes.lnk "Test line 1"
C:\Folder>Notes.lnk "Test" "line" "2"
C:\Folder>Notes.lnk Test line 3
C:\Folder>Notes.lnk
2010 5 21 11 31 30.389
Test line 1
2010 5 21 11 31 50.669
Test line 2
2010 5 21 11 32 14.895
Test line 3
Java
<lang java>import java.io.*; import java.nio.channels.*; import java.util.Date;
public class TakeNotes {
public static void main(String[] args) throws IOException {
if (args.length > 0) {
PrintStream ps = new PrintStream(new FileOutputStream("notes.txt", true));
ps.println(new Date());
ps.print("\t" + args[0]);
for (int i = 1; i < args.length; i++)
ps.print(" " + args[i]);
ps.println();
ps.close();
} else {
FileChannel fc = new FileInputStream("notes.txt").getChannel();
fc.transferTo(0, fc.size(), Channels.newChannel(System.out));
fc.close();
}
}
}</lang>
JavaScript
<lang javascript>var notes = 'NOTES.TXT';
var args = WScript.Arguments; var fso = new ActiveXObject("Scripting.FileSystemObject"); var ForReading = 1, ForWriting = 2, ForAppending = 8;
if (args.length == 0) {
if (fso.FileExists(notes)) {
var f = fso.OpenTextFile(notes, ForReading);
WScript.Echo(f.ReadAll());
f.Close();
}
} else {
var f = fso.OpenTextFile(notes, ForAppending, true);
var d = new Date();
f.WriteLine(d.toLocaleString());
f.Write("\t");
// note that WScript.Arguments is not an array, it is a "collection"
// it does not have a join() method.
for (var i = 0; i < args.length; i++) {
f.Write(args(i) + " ");
}
f.WriteLine();
f.Close();
}</lang>
> del NOTES.TXT
> cscript /nologo notes.js
> cscript /nologo notes.js this is the first note
> cscript /nologo notes.js
April 1, 2010 5:18:38 PM
this is the first note
Kotlin
<lang scala>// version 1.2.10
import java.io.File import java.util.Date import java.text.SimpleDateFormat
fun main(args: Array<String>) {
val f = File("NOTES.TXT")
// create file if it doesn't exist already
f.createNewFile()
if (args.size == 0) {
println(f.readText())
}
else {
val df = SimpleDateFormat("yyyy/MM/dd HH:mm:ss")
val dt = df.format(Date())
val notes = "$dt\n\t${args.joinToString(" ")}\n"
f.appendText(notes)
}
}</lang>
Sample output:
$ java -jar NOTES.jar This is the first note. $ java -jar NOTES.jar 2018/01/27 18:19:06 This is the first note.
Lasso
<lang Lasso>#!/usr/bin/lasso9
local( arguments = $argv -> asarray, notesfile = file('notes.txt') )
- arguments -> removefirst
if(#arguments -> size) => {
#notesfile -> openappend #notesfile -> dowithclose => { #notesfile -> writestring(date -> format(`YYYY-MM-dd HH:mm:SS`) + '\n') #notesfile -> writestring('\t' + #arguments -> join(', ') + '\n') }
else #notesfile -> exists ? stdout(#notesfile -> readstring) }<lang>
Called with: <lang Lasso>./notes "Rosetta was here" Räksmörgås ./notes First Second Last ./notes </lang>
2013-11-15 11:43:08 Rosetta was here, Räksmörgås 2013-11-15 11:43:67 First, Second, Last
Lua
<lang lua>filename = "NOTES.TXT"
if #arg == 0 then
fp = io.open( filename, "r" )
if fp ~= nil then
print( fp:read( "*all*" ) )
fp:close()
end
else
fp = io.open( filename, "a+" )
fp:write( os.date( "%x %X\n" ) )
fp:write( "\t" ) for i = 1, #arg do
fp:write( arg[i], " " )
end fp:write( "\n" )
fp:close()
end</lang>
Mathematica
<lang>If[Length[$CommandLine < 11], str = OpenRead["NOTES.TXT"];
Print[ReadString[str, EndOfFile]]; Close[str], str = OpenAppend["NOTES.TXT"]; WriteLine[str, DateString[]]; WriteLine[str, "\t" <> StringRiffle[$CommandLine11 ;;]]; Close[str]]</lang>
MATLAB / Octave
<lang Matlab> function notes(varargin)
% NOTES can be used for taking notes % usage: % notes displays the content of the file NOTES.TXT % notes arg1 arg2 ... % add the current date, time and arg# to NOTES.TXT %
filename = 'NOTES.TXT'; if nargin==0
fid = fopen(filename,'rt'); if fid<0, return; end; while ~feof(fid) fprintf('%s\n',fgetl(fid)); end; fclose(fid);
else
fid = fopen(filename,'a+');
if fid<0, error('cannot open %s\n',filename); end;
fprintf(fid, '%s\n\t%s', datestr(now),varargin{1});
for k=2:length(varargin)
fprintf(fid, ', %s', varargin{k});
end; fprintf(fid,'\n'); fclose(fid);
end; </lang>
Mercury
<lang mercury>:- module notes.
- - interface.
- - import_module io.
- - pred main(io::di, io::uo) is det.
- - implementation.
- - import_module list, time.
main(!IO) :-
io.command_line_arguments(Args, !IO), ( if Args = [] then print_notes(!IO) else add_note(Args, !IO) ).
- - pred print_notes(io::di, io::uo) is det.
print_notes(!IO) :-
io.open_input(notes_filename, InputRes, !IO),
(
InputRes = ok(Input),
io.input_stream_foldl_io(Input, io.write_char, WriteRes, !IO),
(
WriteRes = ok
;
WriteRes = error(WriteError),
print_io_error(WriteError, !IO)
),
io.close_input(Input, !IO)
;
InputRes = error(_InputError)
).
- - pred add_note(list(string)::in, io::di, io::uo) is det.
add_note(Words, !IO) :-
io.open_append(notes_filename, OutputRes, !IO),
(
OutputRes = ok(Output),
time(Time, !IO),
io.write_string(Output, ctime(Time), !IO),
io.write_char(Output, '\t', !IO),
io.write_list(Output, Words, " ", io.write_string, !IO),
io.nl(Output, !IO),
io.close_output(Output, !IO)
;
OutputRes = error(OutputError),
print_io_error(OutputError, !IO)
).
- - pred print_io_error(io.error::in, io::di, io::uo) is det.
print_io_error(Error, !IO) :-
io.stderr_stream(Stderr, !IO), io.write_string(Stderr, io.error_message(Error), !IO), io.set_exit_status(1, !IO).
- - func notes_filename = string.
notes_filename = "NOTES.TXT".
- - end_module notes.</lang>
Nim
<lang nim>import os, times, strutils
if paramCount() == 0:
try: stdout.write readFile("notes.txt")
except IOError: discard
else:
var f = open("notes.txt", fmAppend)
f.writeln getTime()
f.writeln "\t", commandLineParams().join(" ")
f.close()</lang>
Sample format.txt:
Mon Jul 14 03:37:20 2014 Hello World Mon Jul 14 03:37:45 2014 Hello World again
OCaml
<lang ocaml>#! /usr/bin/env ocaml
- load "unix.cma"
let notes_file = "notes.txt"
let take_notes() =
let gmt = Unix.gmtime (Unix.time()) in
let date =
Printf.sprintf "%d-%02d-%02d %02d:%02d:%02d"
(1900 + gmt.Unix.tm_year) (1 + gmt.Unix.tm_mon) gmt.Unix.tm_mday
gmt.Unix.tm_hour gmt.Unix.tm_min gmt.Unix.tm_sec
in
let oc = open_out_gen [Open_append; Open_creat; Open_text] 0o644 notes_file in
output_string oc (date ^ "\t");
output_string oc (String.concat " " (List.tl(Array.to_list Sys.argv)));
output_string oc "\n";
let dump_notes() =
if not(Sys.file_exists notes_file) then (prerr_endline "no local notes found"; exit 1); let ic = open_in notes_file in try while true do print_endline (input_line ic) done with End_of_file -> close_in ic
let () =
if Array.length Sys.argv = 1 then dump_notes() else take_notes()</lang>
Oz
<lang oz>functor import
Application Open OS System
define
fun {TimeStamp}
N = {OS.localTime}
in
(1900+N.year)#"-"#(1+N.mon)#"-"#N.mDay#", "#N.hour#":"#N.min#":"#N.sec
end
fun {Join X|Xr Sep}
{FoldL Xr fun {$ Z X} Z#Sep#X end X}
end
case {Application.getArgs plain}
of nil then
try
F = {New Open.file init(name:"notes.txt")}
in
{System.printInfo {F read(list:$ size:all)}}
{F close}
catch _ then skip end
[] Args then
F = {New Open.file init(name:"notes.txt" flags:[write text create append])}
in
{F write(vs:{TimeStamp}#"\n")}
{F write(vs:"\t"#{Join Args " "}#"\n")}
{F close}
end
{Application.exit 0}
end</lang>
Pascal
Free Pascal in Delphi mode or Delphi in console mode.
<lang Pascal> {$mode delphi} PROGRAM notes; // Notes: a time-stamped command line notebook // usage: >notes "note"< or >notes< to display contents USES Classes, SysUtils;
VAR Note : TStringList; Fname : STRING = 'Notes.txt'; Dtime : STRING; Ntext : STRING; c : Cardinal;
BEGIN DTime := FormatDateTime('YYYY-MM-DD-hhnn',Now); Note := TStringList.Create; WITH Note DO BEGIN TRY LoadFromFile(Fname); EXCEPT Add(DTime); NText := 'Notes.txt created.'; END; // command line args present: // add note with date & time IF ParamStr(1) <> THEN BEGIN NText := ParamStr(1); Add(DTime); Add(NText); SaveToFile(Fname); // command line args absent: // display contents of notebook END ELSE FOR c := 0 TO Count-1 DO Writeln(Note[c]); Free; END; END. </lang>
- Program usage and output:
>notes "Done: coded notes.pas for RC. It was quick." >notes 2013-09-18-2243 Notes.txt created. 2013-09-18-2252 To do: code notes.pas for RC. 2013-09-18-2253 Done: coded notes.pas for RC. It was quick.
Perl
<lang Perl>my $file = 'notes.txt'; if ( @ARGV ) {
open NOTES, '>>', $file or die "Can't append to file $file: $!"; print NOTES scalar localtime, "\n\t@ARGV\n";
} else {
open NOTES, '<', $file or die "Can't read file $file: $!"; print <NOTES>;
} close NOTES;</lang>
- Output:
after a few runs
Thu Apr 22 19:01:41 2010 Test line 1. Thu Apr 22 19:01:45 2010 Test line 2.
Perl 6
<lang perl6>my $file = 'notes.txt';
multi MAIN() {
print slurp($file);
}
multi MAIN(*@note) {
my $fh = open($file, :a); $fh.say: DateTime.now, "\n\t", @note; $fh.close;
}</lang>
Phix
Copy of Euphoria <lang Phix>constant cmd = command_line() constant filename = "notes.txt" integer fn object line if length(cmd)<3 then
fn = open(filename,"r")
if fn!=-1 then
while 1 do
line = gets(fn)
if atom(line) then exit end if
puts(1,line)
end while
close(fn)
end if
else
fn = open(filename,"a") -- if such file doesn't exist it will be created printf(fn,"%d-%02d-%02d %d:%02d:%02d\n",date()) printf(fn,"\t%s\n",join(cmd[3..$])) close(fn)
end if</lang>
PicoLisp
<lang PicoLisp>#!/usr/bin/picolisp /usr/lib/picolisp/lib.l
(load "@lib/misc.l") (if (argv)
(out "+notes.txt" (prinl (stamp) "^J^I" (glue " " @))) (and (info "notes.txt") (in "notes.txt" (echo))) )
(bye)</lang>
PL/I
<lang PL/I>NOTES: procedure (text) options (main); /* 8 April 2014 */
declare text character (100) varying; declare note_file file;
on undefinedfile(note_file) go to file_does_not_exist;
open file (note_file) title ('/NOTES.TXT,recsize(100),type(text)');
revert error;
if text = then
do;
on endfile (note_file) stop;
do forever;
get file (note_file) edit (text) (L);
put skip list (text);
end;
end;
close file (note_file);
open file (note_file) output title ('/NOTES.TXT,recsize(100),type(text),append(y)');
put file (note_file) skip list (DATETIME('DDMmmYYYY'), TIME());
put file (note_file) skip list (text);
put file (note_file) skip;
put skip list ('Appended ' || text || ' to file');
return;
file_does_not_exist:
revert undefinedfile (note_file);
close file (note_file);
open file (note_file) output title ('/NOTES.TXT,recsize(100),type(text)');
put file (note_file) skip list (DATETIME('DDMmmYYYY'), TIME());
put file (note_file) skip list (text);
put file (note_file) skip;
put skip list ('The file, NOTES.TXT, has been created');
end NOTES;</lang>
PowerShell
<lang powershell>$notes = "notes.txt" if (($args).length -eq 0) {
if(Test-Path $notes) {
Get-Content $notes
}
} else {
Get-Date | Add-Content $notes "`t" + $args -join " " | Add-Content $notes
}</lang>
PureBasic
<lang PureBasic>#FileName="notes.txt" Define argc=CountProgramParameters() If OpenConsole()
If argc=0
If ReadFile(0,#FileName)
While Eof(0)=0
PrintN(ReadString(0)) ; No new notes, so present the old
Wend
CloseFile(0)
EndIf
Else ; e.g. we have some arguments
Define d$=FormatDate("%yyyy-%mm-%dd %hh:%ii:%ss",date())
If OpenFile(0,#FileName)
Define args$=""
While argc
args$+" "+ProgramParameter() ; Read all arguments
argc-1
Wend
FileSeek(0,Lof(0)) ; Go to the end of this file
WriteStringN(0,d$+#CRLF$+#TAB$+args$) ; Append date & note
CloseFile(0)
EndIf
EndIf
EndIf</lang>
Python
<lang python>import sys, datetime, shutil
if len(sys.argv) == 1:
try:
with open('notes.txt', 'r') as f:
shutil.copyfileobj(f, sys.stdout)
except IOError:
pass
else:
with open('notes.txt', 'a') as f:
f.write(datetime.datetime.now().isoformat() + '\n')
f.write("\t%s\n" % ' '.join(sys.argv[1:]))</lang>
Sample notes.txt file
After assorted runs:
2010-04-01T17:06:20.312000 go for it 2010-04-01T17:08:20.718000 go for it
PHP
<lang php>
- !/usr/bin/php
<?php if ($argc > 1)
file_put_contents(
'notes.txt',
date('r')."\n\t".implode(' ', array_slice($argv, 1))."\n",
FILE_APPEND
);
else
@readfile('notes.txt');
</lang> Note that the error suppression operator (@) is considered bad coding practice.
Sample notes.txt file
zls@zls:~$ ./notes hello rosetta code zls@zls:~$ ./notes todo notes program zls@zls:~$ ./notes Tue, 12 Jun 2012 19:27:35 +0200 hello rosetta code Tue, 12 Jun 2012 19:27:45 +0200 todo notes program
R
<lang R>#!/usr/bin/env Rscript --default-packages=methods
args <- commandArgs(trailingOnly=TRUE)
if (length(args) == 0) {
conn <- file("notes.txt", 'r')
cat(readLines(conn), sep="\n")
} else {
conn <- file("notes.txt", 'a')
cat(file=conn, date(), "\n\t", paste(args, collapse=" "), "\n", sep="")
} close(conn)</lang>
Racket
<lang Racket>
- !/usr/bin/env racket
- lang racket
(define file "NOTES.TXT") (require racket/date) (command-line #:args notes
(if (null? notes)
(if (file-exists? file)
(call-with-input-file* file
(λ(i) (copy-port i (current-output-port))))
(raise-user-error 'notes "missing ~a file" file))
(call-with-output-file* file #:exists 'append
(λ(o) (fprintf o "~a\n\t~a\n"
(date->string (current-date) #t)
(string-join notes))))))
</lang>
REBOL
<lang REBOL>REBOL [
Title: "Notes" URL: http://rosettacode.org/wiki/Take_notes_on_the_command_line
]
notes: %notes.txt
either any [none? args: system/script/args empty? args] [
if exists? notes [print read notes]
] [
write/binary/append notes rejoin [now lf tab args lf]
]</lang>
- Sample session:
> rebol -w notes.r > rebol -w notes.r "Test line 1" > rebol -w notes.r "Test" "line" "2" > rebol -w notes.r Test line 3 > rebol -w notes.r 4-Oct-2010/21:45:16-5:00 Test line 1 4-Oct-2010/21:45:27-5:00 Test line 2 4-Oct-2010/21:45:36-5:00 Test line 3
REXX
<lang rexx>/*REXX program implements the "NOTES" command (append text to a file from the C.L.).*/ timestamp=right(date(),11,0) time() date('W') /*create a (current) date & time stamp.*/ nFID = 'NOTES.TXT' /*the fileID of the "notes" file. */
if 'f2'x==2 then tab="05"x /*this is an EBCDIC system. */
else tab="09"x /* " " " ASCII " */
if arg()==0 then do while lines(nFID) /*No arguments? Then display the file.*/
say linein(Nfid) /*display a line of file ──► screen. */
end /*while*/
else do
call lineout nFID,timestamp /*append the timestamp to "notes" file.*/
call lineout nFID,tab||arg(1) /* " " text " " " */
end
/*stick a fork in it, we're all done. */</lang>
Ruby
<lang ruby>notes = 'NOTES.TXT' if ARGV.empty?
File.copy_stream(notes, $stdout) rescue nil
else
File.open(notes, 'a') {|file| file.puts "%s\n\t%s" % [Time.now, ARGV.join(' ')]}
end</lang>
Rust
This uses version 0.4 of the chrono crate
<lang Rust>extern crate chrono;
use std::fs::OpenOptions; use std::io::{self, BufReader, BufWriter}; use std::io::prelude::*; use std::env;
const FILENAME: &str = "NOTES.TXT";
fn show_notes() -> Result<(), io::Error> {
let file = OpenOptions::new()
.read(true)
.create(true) // create the file if not found
.write(true) // necessary to create the file
.open(FILENAME)?;
let mut buf_reader = BufReader::new(file);
let mut contents = String::new();
buf_reader.read_to_string(&mut contents)?;
println!("{}", contents);
Ok(())
}
fn add_to_notes(note: &str) -> Result<(), io::Error> {
let file = OpenOptions::new()
.append(true) // disables overwriting, writes to the end of the file
.create(true)
.open(FILENAME)?;
let mut buf_writer = BufWriter::new(file);
let date_and_time = chrono::Local::now();
writeln!(buf_writer, "{}", date_and_time)?;
writeln!(buf_writer, "\t{}", note)
}
fn main() {
let note = env::args().skip(1).collect::<Vec<_>>();
if note.is_empty() {
show_notes().expect("failed to print NOTES.TXT");
} else {
add_to_notes(¬e.join(" ")).expect("failed to write to NOTES.TXT");
}
}</lang>
Scala
<lang scala>import java.io.{ FileNotFoundException, FileOutputStream, PrintStream } import java.time.LocalDateTime
object TakeNotes extends App {
val notesFileName = "notes.txt"
if (args.length > 0) {
val ps = new PrintStream(new FileOutputStream(notesFileName, true))
ps.println(LocalDateTime.now() + args.mkString("\n\t", " ", "."))
ps.close()
} else try {
io.Source.fromFile(notesFileName).getLines().foreach(println)
} catch {
case e: FileNotFoundException => println(e.getLocalizedMessage())
case e: Throwable => {
println("Some other exception type:")
e.printStackTrace()
}
}
}</lang>
Scheme
(moved from Racket)
<lang scheme>#lang racket (require racket/date) (define *notes* "NOTES.TXT")
(let ([a (vector->list (current-command-line-arguments))])
(cond
[(empty? a)
(with-handlers ([exn:fail? void])
(call-with-input-file *notes*
(lambda (fi)
(copy-port fi (current-output-port)))))
]
[else
(call-with-output-file *notes*
(lambda (fo)
(let ([ln (apply string-append (add-between a " "))]
[dt (date->string (current-date))])
(fprintf fo "~a~n\t~a~n" dt ln)))
#:mode 'text #:exists 'append)
]))</lang>
Seed7
<lang seed7>$ include "seed7_05.s7i"; $ include "getf.s7i"; $ include "time.s7i";
const string: noteFileName is "NOTES.TXT";
const proc: main is func
local
var file: note is STD_NULL;
begin
if length(argv(PROGRAM)) = 0 then
# write NOTES.TXT
write(getf(noteFileName));
else
# Write date & time to NOTES.TXT, and then arguments
note := open(noteFileName, "a");
if note <> STD_NULL then
writeln(note, truncToSecond(time(NOW)));
writeln(note, "\t" <& join(argv(PROGRAM), " "));
close(note);
end if;
end if;
end func;</lang>
Sidef
<lang ruby>var file = %f'notes.txt'
if (ARGV.len > 0) {
var fh = file.open_a
fh.say(Time.local.ctime + "\n\t" + ARGV.join(" "))
fh.close
} else {
var fh = file.open_r
fh && fh.each { .say }
}</lang>
- Output:
$ sidef notes.sf Test 1 $ sidef notes.sf Test 2 $ sidef notes.sf Sat Sep 12 00:19:36 2015 Test 1 Sat Sep 12 00:19:37 2015 Test 2
SNOBOL4
<lang snobol>#! /usr/local/bin/snobol4 -b a = 2 ;* skip '-b' parameter notefile = "notes.txt" while args = args host(2,a = a + 1) " " :s(while) ident(args) :f(append) noparms input(.notes,io_findunit(),,notefile) :s(display)f(end) display output = notes :s(display) endfile(notes) :(end) append output(.notes,io_findunit(),"A",notefile) :f(end) notes = date() notes = char(9) args end</lang>
Swift
<lang Swift>import Foundation
let args = Process.arguments let manager = NSFileManager() let currentPath = manager.currentDirectoryPath var err:NSError?
// Create file if it doesn't exist if !manager.fileExistsAtPath(currentPath + "/notes.txt") {
println("notes.txt doesn't exist")
manager.createFileAtPath(currentPath + "/notes.txt", contents: nil, attributes: nil)
}
// handler is what is used to write to the file let handler = NSFileHandle(forUpdatingAtPath: currentPath + "/notes.txt")
// Print the file if there are no args if args.count == 1 {
let str = NSString(contentsOfFile: currentPath + "/notes.txt", encoding: NSUTF8StringEncoding, error: &err) println(str!) exit(0)
}
let time = NSDate() let format = NSDateFormatter() let timeData = (format.stringFromDate(time) + "\n").dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false) format.dateFormat = "yyyy.MM.dd 'at' HH:mm:ss zzz"
// We're writing to the end of the file handler?.seekToEndOfFile() handler?.writeData(timeData!)
var str = "\t" for i in 1..<args.count {
str += args[i] + " "
}
str += "\n"
let strData = str.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false) handler?.writeData(strData!)</lang>
- Output:
Example output
2015.01.22 at 14:19:18 EST this is a note 2015.01.22 at 14:19:36 EST this is something important
Tcl
<lang tcl># Make it easier to change the name of the notes file set notefile notes.txt
if {$argc} {
# Write a message to the file set msg [clock format [clock seconds]]\n\t[join $argv " "] set f [open $notefile a] puts $f $msg close $f
} else {
# Print the contents of the file
catch {
set f [open $notefile] fcopy $f stdout close $f
}
}</lang>
- Output:
after a few runs
Thu Apr 01 19:28:07 BST 2010 test 1 two three Thu Apr 01 19:28:49 BST 2010 TODO: Submit notes.tcl to Rosetta Code
UNIX Shell
Bash version <lang bash># NOTES=$HOME/notes.txt if $# -eq 0 ; then
-r $NOTES && more $NOTES
else
date >> $NOTES echo " $*" >> $NOTES
fi</lang>
"Spoiled Bash kid" version <lang bash>N=~/notes.txt;$# -gt 0 && { date ; echo " $*"; exit 0; } >> $N || -r $N && cat $N</lang>
Portable version
<lang bash>NOTES=$HOME/notes.txt
if test "x$*" = "x"
then
if test -r $NOTES
then
more $NOTES
fi
else
date >> $NOTES
echo " $*" >> $NOTES
fi</lang>
Visual Basic .NET
<lang vbnet>Imports System.IO
Module Notes
Function Main(ByVal cmdArgs() As String) As Integer
Try
If cmdArgs.Length = 0 Then
Using sr As New StreamReader("NOTES.TXT")
Console.WriteLine(sr.ReadToEnd)
End Using
Else
Using sw As New StreamWriter("NOTES.TXT", True)
sw.WriteLine(Date.Now.ToString())
sw.WriteLine("{0}{1}", ControlChars.Tab, String.Join(" ", cmdArgs))
End Using
End If
Catch
End Try
End Function
End Module</lang>
zkl
File notes.zkl: <lang zkl>const notesName="NOTES.TXT"; args:=vm.arglist; if (not args)
{ try{ File(notesName).read(*).text.print(); } catch{println("no file")} }
else{
f:=File(notesName,"a+");
f.writeln(Time.Date.ctime(),"\n\t",args.concat(" "));
f.close();
}</lang>
- Output:
$ zkl notes no file $ zkl notes this is a test $ zkl notes Tue Apr 8 20:51:16 2014 this is a test
- Programming Tasks
- Text processing
- Selection/Short Circuit/Console Program Basics
- Basic language learning
- Programming environment operations
- Lotus 123 Macro Scripting/Omit
- Maxima/Omit
- Openscad/Omit
- ZX Spectrum Basic/Omit
- Ada
- Aime
- AppleScript
- AutoHotkey
- AWK
- BASIC
- Batch File
- BBC BASIC
- C
- C++
- C sharp
- Clojure
- COBOL
- Common Lisp
- D
- Delphi
- E
- Elixir
- Erlang
- Euphoria
- F Sharp
- Factor
- Fantom
- Forth
- Gambas
- Go
- Groovy
- Haskell
- HicEst
- Icon
- Unicon
- J
- Java
- JavaScript
- Kotlin
- Lasso
- Lua
- Mathematica
- MATLAB
- Octave
- Mercury
- Nim
- OCaml
- Oz
- Pascal
- Perl
- Perl 6
- Phix
- PicoLisp
- PL/I
- PowerShell
- PureBasic
- Python
- PHP
- R
- Racket
- REBOL
- REXX
- Ruby
- Rust
- Scala
- Scheme
- Seed7
- Sidef
- SNOBOL4
- Swift
- Tcl
- UNIX Shell
- Retro/Omit
- Visual Basic .NET
- Zkl