Delete a file: Difference between revisions
m
→{{header|Wren}}: Changed to Wren S/H
(add →Joy) |
m (→{{header|Wren}}: Changed to Wren S/H) |
||
| (7 intermediate revisions by 5 users not shown) | |||
Line 478:
=={{header|COBOL}}==
To delete files or directories in COBOL we need to use unofficial extensions. The following are built-in subroutines originally created as part of some of the COBOL products created by Micro Focus.▼
{{works with|Visual COBOL}}
{{works with|
<syntaxhighlight lang="cobol"> IDENTIFICATION DIVISION.
PROGRAM-ID. Delete-Files.
PROCEDURE DIVISION.▼
CALL "CBL_DELETE_FILE" USING "input.txt"▼
CALL "CBL_DELETE_DIR" USING "docs"▼
CALL "CBL_DELETE_FILE" USING "/input.txt"▼
CALL "CBL_DELETE_DIR" USING "/docs"▼
GOBACK▼
.</syntaxhighlight>▼
▲Alternate method of deleting files using the <code>DELETE FILE</code> statement.
{{works with|Visual COBOL}}▼
<syntaxhighlight lang="cobol"> IDENTIFICATION DIVISION.▼
PROGRAM-ID. Delete-Files-2.▼
ENVIRONMENT DIVISION.
Line 508 ⟶ 494:
FD Local-File.
01 Local-Record PIC X.
FD Root-File.
01 Root-Record PIC X.
Line 515 ⟶ 500:
DELETE FILE Local-File
DELETE FILE Root-File
▲ GOBACK.
END PROGRAM Delete-Files.</syntaxhighlight>
▲
▲{{works with|Visual COBOL}}
{{works with|GnuCOBOL}}
▲<syntaxhighlight lang="cobol"> IDENTIFICATION DIVISION.
▲ PROCEDURE DIVISION.
▲ CALL "CBL_DELETE_FILE" USING "input.txt"
▲ CALL "CBL_DELETE_DIR" USING "docs"
▲ CALL "CBL_DELETE_FILE" USING "/input.txt"
▲ CALL "CBL_DELETE_DIR" USING "/docs"
GOBACK.▼
END PROGRAM Delete-Files.</syntaxhighlight>
▲ GOBACK
.</syntaxhighlight>▼
=={{header|Common Lisp}}==
Line 748 ⟶ 749:
<pre>
Usage: furor rmdir.upu unnecessary_directory
</pre>
=={{header|Peri}}==
<syntaxhighlight lang="peri">
###sysinclude standard.uh
###sysinclude args.uh
###sysinclude str.uh
###sysinclude io.uh
// ===================
#g argc 3 < { #s ."Usage: " 0 argv print SPACE 1 argv print ." filename\n" end }
2 argv 'e inv istrue { #s ."The given file ( " 2 argv print ." ) doesn't exist!\n" end }
2 argv removefile
end
<pre>
Usage: peri removefile.upu filename
</pre>
<syntaxhighlight lang="peri">
###sysinclude standard.uh
###sysinclude args.uh
###sysinclude str.uh
###sysinclude io.uh
#g argc 3 < { ."Usage: " #s 0 argv print SPACE 1 argv print SPACE ."unnecessary_directory\n" end }
2 argv 'd inv istrue { ."The given directory doesn't exist! Exited.\n" }{
2 argv rmdir
}
end
<pre>
Usage: peri rmdir.upu unnecessary_directory
</pre>
Line 1,007 ⟶ 1,040:
<syntaxhighlight lang="lang">
# Load the IO module
# Replace "<pathToIO.lm>" with the location where the io.lm
ln.loadModule(<pathToIO.lm>)
Line 1,524 ⟶ 1,557:
system("rmdir docs")
</syntaxhighlight>
=={{header|RPL}}==
There is a unique RPL instruction to delete both files and directories. Directories must be empty to be deletable.
'output.txt' PURGE
'docs' PURGE
HOME output.txt' PURGE
HOME 'docs' PURGE
Basically, <code>HOME</code> moves the user from the current directory to the root. If the last two commands are done successively, only the first call is necessary.
=={{header|Ruby}}==
Line 1,779 ⟶ 1,820:
IO.Directory.Delete(IO.Path.DirectorySeparatorChar & "docs")
IO.File.Delete(IO.Path.DirectorySeparatorChar & "output.txt")</syntaxhighlight>
=={{header|V (Vlang)}}==
<syntaxhighlight lang="Rust">
import os
fn main() {
os.rm("./input.txt") or {println(err) exit(-1)}
os.rmdir("./docs") or {println(err) exit(-2)} // os.rmdir_all, recursively removes specified directory
// check if file exists
if os.is_file("./input.txt") == true {println("Found file!")}
else {println("File was not found!")}
// check if directory exists
if os.is_dir("./docs") == true {println("Found directory!")}
else {println("Directory was not found!")}
}
</syntaxhighlight>
=={{header|Wren}}==
Line 1,784 ⟶ 1,841:
Wren does not currently support the removal of directories.
<syntaxhighlight lang="
File.delete("input.txt")
| |||