On 7/9/22 05:16, GUI wrote:
Thank you very much.I think there are something wrong with my expression.
grep Download
When you type something, hitting grep will do a row match
The "grep Download" command has no file.So it is the case that"If no FILE is given, recursive
searches examine the work
It might not be evident to some, but grep (and many similar commands) do NOT
initially decide if a command line argument refers to a file or not by checking
(with a stat(2) system call or similar) if the argument actually refers to a
file.
Rather it's initial mode of operation is decided by the
