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I need to delete all files, except one (its name is defined), from a given directory.

How can I do this from the terminal in OS X? Can I do this with one single command?

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migrated from stackoverflow.com May 31 '12 at 8:40

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2 Answers 2

up vote 5 down vote accepted
shopt -s extglob && rm !(non_delete_file)

or

rm -f !(non_delete_file)

or

find . ! -name non_delete_file -delete

Note that the above find command will work recursively -- it will delete all files and directories in the current directory, and in all subdirectories. If that is a problem, use -type f (to match only files) and -maxdepth 1 (to match things only in the current directory, ignoring subdirectories)

find . -type f -maxdepth 1 ! -name non_delete_file -delete
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+1, you arrived just a second before me with find command :) –  DonCallisto May 30 '12 at 8:00
    
@DonCallisto, sorry, i don't know, next time i'll wait you :) –  shk May 30 '12 at 8:02

Try

rm `ls | grep -v '^defined$'`
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And what about not_defined? –  Ignacio Vazquez-Abrams May 30 '12 at 7:58
    
Fixed with anchors. –  Christian Varga May 30 '12 at 8:00
    
Don't parse ls (this answer will specifically break on files with spaces in their names). you could use printf %s\\n * instead of ls for more reliability (though that will still break on files with newlines in their names...) –  evilsoup Jul 31 '13 at 18:30

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