UNIX for Advanced & Expert Users

How about

Code:

ls | grep '.*\.c$'

If you don't want to descend into subdirectories, the simple way to do this is:

Code:

ls -1 *.c

Note that in the ls option -1 that is the digit one, not the letter ell.
Or, if you just want to see how pruning would work using a basic regular expression in grep instead of a filename pattern match in the shell, use:

Code:

ls|grep '[.]c$'

If you wonder why the $ is there, try running the above command with and without the $ in a directory in which there is a file named source.cpp and a file named source.c.

If you wonder why you need [.] instead of just . in a BRE, try the command above with and without the $ and with and without the square brackets in a directory that contains the files named before and files named abc, bcd, and c.

Namely

Code:

find . -maxdepth 1 -name "*.c"

Unix find with a "." startdir:

Code:

find . \! -name . -prune -name "*.c" -print

grep:

Code:

\ls | grep '[.]c$'

If the number of files is not too high, you can try:

Code:

printf "%s\n" *.c

Code:

echo *.c