22 июл. 2009 г. · While grep can't output a specific group, you can use lookahead and behind assertions to achieve what your after.

6 сент. 2018 г. · I am on macOS and would like to get into using grep (or a similar tool) to find unique occurrences of a certain pattern in a codebase.

3 нояб. 2014 г. · My problem is about a regex. Thanks to regexr , I managed to write up an expression that matches the interface name route linux command gave me.

31 авг. 2020 г. · Normally, grep prints the whole line containing a match. -o tells grep instead to print only the match. -P tells grep to use Perl-syntax which ...

7 авг. 2018 г. · I am trying to extract the first time stamp, and two or three other matches but I want to be able to only print the matches from the lines where all the ...

21 июн. 2021 г. · In your regex, (blue|blue) is a capturing group. After a capturing group has captured a group, \1 can be used to refer to what was captured.

24 мая 2022 г. · I want to filter all lines from a file that contain mySearchString and after that group them together and count them.

26 сент. 2017 г. · I am trying to grep with regex that contains pipe character |. However, It doesn't work as expected. The regex does not match the | inclusively.

17 апр. 2018 г. · PCRE syntax is different from the regex dialect supported by grep -E on every platform, not just on the Mac. GNU grep has grep -P for PCRE syntax.

22 сент. 2011 г. · I'd like to print only few groups from text matching a regex. How can I do that in the Linux command line? What other tools for text processing ...