Difference between revisions of "Global Regular Expression Print"
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== Useful Flags == | == Useful Flags == | ||
<code>-E</code> use extended regex</br> | <code>-E</code> use extended regex</br> | ||
<code>-A x</code> print x lines after matched pattern</br> | <code>-A x</code> print x lines after matched pattern</br> | ||
<code>-B x</code> print x lines before matched pattern</br> | <code>-B x</code> print x lines before matched pattern</br> | ||
<code>-C x</code> print x lines before and after matched pattern, results separated by "--"</br> | <code>-C x</code> print x lines before and after matched pattern, results separated by "--"</br> | ||
<code>-c</code> print number of matches</br> | |||
<code>-i</code> case insensitive</br> | |||
<code>-mX</code> limit number of matches to X</br> | |||
<code>-n</code> print line number from file</br> | <code>-n</code> print line number from file</br> | ||
<code>-o</code> only print matched pattern</br> | <code>-o</code> only print matched pattern</br> | ||
<code>-R</code> search | <code>-R</code> recursive search in a given folder, follow symlinks</br> | ||
<code>-v</code> inverse | <code>-r</code> recursive search in a given folder, don't follow symlinks</br> | ||
<code>-v</code> match inverse</br> | |||
<code>-w</code> match whole words only</br> | <code>-w</code> match whole words only</br> | ||
Revision as of 17:05, 30 December 2022
grep
Print lines from text that match patterns, basic regex is used by default
Use
grep /etc/ssh/sshd_config pattern match pattern in /etc/sshd_config, case sensitive
Useful Flags
-E use extended regex
-A x print x lines after matched pattern
-B x print x lines before matched pattern
-C x print x lines before and after matched pattern, results separated by "--"
-c print number of matches
-i case insensitive
-mX limit number of matches to X
-n print line number from file
-o only print matched pattern
-R recursive search in a given folder, follow symlinks
-r recursive search in a given folder, don't follow symlinks
-v match inverse
-w match whole words only