Rename a file: Difference between revisions
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In this task, the job is to rename the file called "input.txt" into "output.txt" and a directory called "docs" into "mydocs". This should be done twice: once "here", i.e. in the current working directory and once in the filesystem root. |
In this task, the job is to rename the file called "input.txt" into "output.txt" and a directory called "docs" into "mydocs". This should be done twice: once "here", i.e. in the current working directory and once in the filesystem root. |
Revision as of 17:30, 12 October 2007
You are encouraged to solve this task according to the task description, using any language you may know.
In this task, the job is to rename the file called "input.txt" into "output.txt" and a directory called "docs" into "mydocs". This should be done twice: once "here", i.e. in the current working directory and once in the filesystem root.
Forth
s" input.txt" s" output.txt" rename-file throw s" /input.txt" s" /output.txt" rename-file throw
DOS Batch File
ren input.txt output.txt ren \input.txt \output.txt
Groovy
Using File
['input.txt':'output.txt', 'docs':'mydocs'].each { src, dst -> ['.', ''].each { dir -> new File("$dir/$src").renameTo(new File("$dir/$dst")) } }
Using Ant
['input.txt':'output.txt', 'docs':'mydocs'].each { src, dst -> ['.', ''].each { dir -> new AntBuilder().move(file:"$dir/$src", toFile:"$dir/$dst") } }
Java
import java.util.File; public class FileRenameTest { public static boolean renameFile(String oldname, String newname) { // File (or directory) with old name File file = new File(oldname); // File (or directory) with new name File file2 = new File(newname); // Rename file (or directory) boolean success = file.renameTo(file2); return sucess; } public static void test(String type, String oldname, String newname) { System.out.println("The following " + type + " called " + oldname + ( renameFile(oldname, newname) ? " was renamed as " : " could not be renamed into ") + newname + "." ); } public static void main(String args[]) { test("file", "input.txt", "output.txt"); test("file", File.seperator + "input.txt", File.seperator + "output.txt"); test("directory", "docs", "mydocs"); test("directory", File.seperator + "docs" + File.seperator, File.seperator + "mydocs" + File.seperator); } }
MAXScript
MAXScript has no folder rename method
-- Here renameFile "input.txt" "output.txt" -- Root renameFile "/input.txt" "/output.txt"
Perl
use File::Copy qw(move); use File::Spec::Functions qw(catfile rootdir); # here move 'input.txt', 'output.txt'; move 'docs', 'mydocs'; # root dir move (catfile rootdir, 'input.txt'), (catfile rootdir, 'output.txt'); move (catfile rootdir, 'docs'), (catfile rootdir, 'mydocs');
Pop11
sys_file_move('inputs.txt', 'output.txt'); sys_file_move('docs', 'mydocs'); sys_file_move('/inputs.txt', '/output.txt'); sys_file_move(/'docs', '/mydocs');
Note that notion of the root of filesystem is Unix specific, so above we do not try to suport other systems.
Ruby
It uses a hash to store the source and destination, so it's easy to add more dirs/files to move and you can easily switch to using another method to move them.
#!/usr/bin/env ruby require 'FileUtils' moves = { "input.txt" => "output.txt", "/input.txt" => "/output.txt", "docs" => "mydocs","/docs" => "/mydocs"} moves.each{ |src, dest| FileUtils.move( src, dest, :verbose => true ) }
Tcl
Assuming that the Bash example shows what is actually meant with this task (one file and one directory here, one file and one directory in the root) and further assuming that this is supposed to be generic (i.e. OS agnostic):
file rename inputs.txt output.txt file rename docs mydocs file rename [file nativename /inputs.txt] [file nativename /output.txt] file rename [file nativename /docs] [file nativename /mydocs]
Toka
needs shell " input.txt" " output.txt" rename " /input.txt" " /output.txt" rename " docs" " mydocs" rename " /docs" " /mydocs" rename
UNIX Shell
mv input.txt output.txt mv /input.txt /output.txt mv docs mydocs mv /docs /mydocs