rm non-permanent delete Post: 302481056

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Top Forums UNIX for Advanced & Expert Users rm non-permanent delete Post 302481056 by tetsujin on Thursday 16th of December 2010 01:46:51 PM

12-16-2010

Registered User

Better yet, don't change the meaning of "rm" at all... "rm" should do what "rm" does: remove files from the directory tree structure. If you want a user-friendly "trash" command you should call it something else. Benefits:

You won't try to delete something and wind up merely trashing it instead
You won't try to trash something and wind up permanently deleting it instead (if PATH is changed to not include your script, etc.)
No risk of breaking existing scripts, etc. that use rm to mean what it's supposed to mean (and possibly expect the rm command to provide various options that your script doesn't...)
running "rm" will actually recover usable disk space, as it should.
"rm" remains a relatively fast operation (since you're just unlinking data, rather than possibly moving it from one filesystem to another.)

I mentioned various "rm" options your script doesn't handle: basically, that would be "--recursive" (-r) and "--force" (-f). You could handle these in the "trash" script but things quickly get more complicated. (You can "force" move, but to move recursively across filesystems you have to copy recursively and then remove the source... And then you have to worry about whether you're correctly handling cases where the copy succeeded but the remove failed for one or more files...)

IIRC the trash system on Mac OS X avoids the cross-filesystem issue by creating a trash bin on each filesystem, so that would be another possibility. But it seems to me that to do all this right is not entirely a trivial problem.

tetsujin

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LEARN ABOUT DEBIAN

trash-put

TRASH(1)						      General Commands Manual							  TRASH(1)

NAME

       trash - Command line trash utility.

SYNOPSIS

       trash [arguments] ...

DESCRIPTION

       Trash-cli  package provides a command line interface trashcan utility compliant with the FreeDesktop.org Trash Specification.  It remembers
       the name, original path, deletion date, and permissions of each trashed file.

ARGUMENTS

       Names of files or directory to move in the trashcan.

EXAMPLES

       $ cd /home/andrea/
       $ touch foo bar
       $ trash foo bar

BUGS

       Report bugs to http://code.google.com/p/trash-cli/issues

AUTHORS

       Trash was written by Andrea Francia <andreafrancia@users.sourceforge.net> and Einar Orn Olason <eoo@hi.is>.  This manual page  was  written
       by Steve Stalcup <vorian@ubuntu.com>.  Changes made by Massimo Cavalleri <submax@tiscalinet.it>.

SEE ALSO

       trash-list(1), trash-restore(1), trash-empty(1), and the FreeDesktop.org Trash Specification at http://www.ramendik.ru/docs/trashspec.html.

       Both are released under the GNU General Public License, version 2 or later.

																	  TRASH(1)

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