Hello
In *man grep* page, in the beginning, in the *description* section,
there is phrase:
/A FILE of “-” stands for standard input. If no FILE is given,
recursive searches examine the working directory, and nonrecursive
searches read standard input./
This is for GNU grep 3.4 in Ubuntu 20.04. At first read I thought that
this phrase is non accurate, that it have mistakes. I read and
understand it as follows:
/ If no FILE is given, recursively examine the working directory, and
nonrecursively read standard input./
/Which does not have sense./
/But t/his phrase is accurate and means the following: _If no FILE is
given, recursive searches (grep with -r option), examine the working
directory; nonrecursive searches (without -r option), read standard input._
Though it will be hard to get for non experienced user. Please, make it
more simple and straightforward, remove possible ambiguity. You can use
my version above or correct it as you prefer.
As I understand this ambiguity created related discussion on Unix &
Linux Stack Exchange: Why is "grep keyword" causing the terminal to
stand by forever? — https://unix.stackexchange.com/a/789609/585416
Thanks, Anton.
