Need a shell script that deletes all files except *.pdf

问题

Can anyone write a shell script that deletes all the files in the folder except those with pdf extension?

回答1:

This will include all subdirectories:

find . -type f ! -iname '*.pdf' -delete

This will act only in the current directory:

find . -maxdepth 1 -type f ! -iname '*.pdf' -delete

回答2:

$ ls -1 | grep -v '.pdf$' | xargs -I {} rm -i {}

Or, if you are confident:

$ ls -1 | grep -v '.pdf$' | xargs -I {} rm {}

Or, the bulletproof version:

$ find . -maxdepth 1 -type f ! -iname '*.pdf' -delete

回答3:

This should do the trick:

shopt -s extglob
rm !(*.pdf)

回答4:

ls | grep -v '.pdf$' | xargs rm

This will filter all files that don't end in PDF, and execute RM on them

来源：https://stackoverflow.com/questions/4702577/need-a-shell-script-that-deletes-all-files-except-pdf