You can use the -delete flag of find (first test with -ls)

find -not -name "*.c" -delete

If you do not want to use find, but only files in the current directory, you could do

rm !(*.c)

Make sure in bash that with shopt -s extglob the correct globbing is set. Additionally, if you have globstar set (shopt -s globstar), you can act recursively:

rm **/!(*.c)

You can use the -delete flag of find (first test with -ls)

find -not -name "*.c" -delete

If you do not want to use find, but only files in the current directory, you could do

rm !(*.c)

Make sure in bash that with shopt -s extglob the correct globbing is set. Additionally, if you have globstar set (shopt -s globstar), you can act recursively (for bash versions above 4):

rm **/!(*.c)

You can use the -delete flag of find (first test with -ls)

find -not -name "*.c" -delete

If you do not want to use find, but only files in the current directory, you could do

rm !(*.c)

Make sure in bash that with shopt -s extglob the correct globbing is set.

You can use the -delete flag of find (first test with -ls)

find -not -name "*.c" -delete

If you do not want to use find, but only files in the current directory, you could do

rm !(*.c)

Make sure in bash that with shopt -s extglob the correct globbing is set. Additionally, if you have globstar set (shopt -s globstar), you can act recursively:

rm **/!(*.c)