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>> Because, of course, the above line will result in crap you >> don't want if you don't happen to have directories that >> match your strings: > shopt -s nullglob > At least in a vaguely contemporary bash. This, of course, results in commands responding as if you typed nothing where a wildcard doesn't match. So ls -l *.o results in a directory listing instead of a slightly more helpful ls: *.o: No such file or directory Or cat *.c|grep func_name waiting on stdin for you. Which is probably worse than the wildcard crap lying around. zsh has a "setopt NOMATCH" which prevents the command from running at all in this case: cat *.c|grep func_name zsh: no matches found: *.c but this has the annoying effect of find src -name *.h never working like you want (since if there are .h files, they are expanded. If there aren't, it refuses to run). And ls *.c *.h *.o fails unless you have all three. And if I knew what was there, I wouldn't be listing for them.There's stuff above here
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