Why the command “grep” doesn’t work with no parameters?
Question
I've been trying to use the command grep, but without the -R parameter the whole cli goes just idle. Can someone explain me why?
1 answers
solution1
0 ACCPTED 2018-04-19 17:41:35
I assume you're not providing any files at all to search. If that's the case, then grep is reading from stdin (standard input). It's waiting for you to close the input ( Ctrl + D ), and then it'll search that.
If you want to search files, you need to tell it what files to search. Perhaps you mean to include * in your command?
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