8 июн. 2016 г. · The -m3 option tells grep to return only the first three matches. tail -n4 returns the last four lines from among those matches. If the second ...

15 нояб. 2012 г. · I have a string that is always 3 characters... the first one and the last one are always the same. example: ▅█ Is there a simple way to only display the one in ...

27 окт. 2015 г. · I need to search for a specific string on the 6th column only and then return the entire line through the grep utility. There are totally 10 columns and ...

4 авг. 2014 г. · I want to perform a second grep, but only searching through the files returned by the first grep search. Is there a way to do this?

16 мар. 2019 г. · The grep option "-A 2" states that two lines after the matched line are outputted. And the tail option "-n 1" states that only the last 1 lines ...

16 июн. 2011 г. · You can use grep with -A n option to print N lines after matching lines. Using -B n option you can print N lines before matching lines. Using - ...

20 окт. 2016 г. · I always want the 2nd line above the matching pattern, they are as well in blocks of 3, so I'd want the very first line of every block.

8 июн. 2018 г. · If you just wanted a plain text search without caring about columns, you can chain the inverted match grep -v like so: cat input.txt | grep ...

6 июн. 2018 г. · I want to use grep to search for a word. I used this command: grep -w "Level1.2" file1.txt > result.txt The output is: site1.com,Level1.2 site2.com,Level1.1, ...

13 авг. 2020 г. · I am looking to display M lines after the Nth occurrence of a match. Actually I need to do this in order to split a file containing Nth <regex> ...