May 16, 2019 · grep defines success as matching 1 or more lines. Failure includes matching zero lines, or some other error that prevented matching from ...
People also ask
What is the Q option in grep?
How do I use grep to search?
How to search a pattern using grep?
How to use grep search directory?
Aug 27, 2022 · -q tells grep to exit with a success exit status as soon as one line matching the pattern is found and with failure if no matching line has ...
The grep utility searches the input files, selecting lines matching one or more patterns; the types of patterns are controlled by the options specified.
Jun 9, 2018 · The -q means to be quiet or do not output anything to stdout but only exit with a zero (success) as soon as one match is found.
Jan 23, 2024 · grep is a command-line utility that searches for a specific text string in one or more files. It looks for the pattern in each line of the file ...
Mar 15, 2017 · My code is littered with grep with a &> /dev/null on the end. Using -q , not only does grep exit after the first match, it suppresses all output ...
grep searches for PATTERNS in each FILE. PATTERNS is one or more patterns separated by newline characters, and grep prints each line that matches a pattern.
Jul 27, 2021 · @NathanPierson The - tells grep to search its standard input (in this case, the input from the pipe). See #13 in the POSIX utility syntax ...
Jan 4, 2018 · grep -q turns off writing to standard output. The $? exit status is 0 if a match is found, otherwise not 0. This is pretty much the explanation ...
The grep utility searches the given input files selecting lines which match one or more patterns. The type of patterns is controlled by the options specified.