awk | Txt

14 Apr

Sort by Line Length

Sort file by line length. Original Article…


cat /etc/passwd | awk '{print length,  $0}' | sort -n | awk '{$ 1=""; print $0 }'

26 May

This will convert all the ico files in the folder to gif. It uses the final frame of the ico file to create the gif.


for i in *.ico; do convert `mogrify -identify  $i|awk '{print$ 1}'|tail -n1` $i.gif;  done

27 Apr

This command removes all the even lines from the file given as the argument


cat example.txt|awk 'NR%2==1'

16 Apr

Use this command if you want to know your command usage stats in the fish shell.


grep -v "^\#" ".config/fish/fish_history"|awk '{print $1}'|sort|uniq -c|sort -rn|head -n10

14 Sep

A better way to get the process id of an application. I recommend giving an alias for this command…


ps aux|grep firefox|awk '{print  $2 "\t\t"$ 12}'|head -n1

Replace firefox with the name of the application you are searching for.

09 Jul

One can use awk to get a specific column from a command output…

First column of the command
date|awk '{print $1}'

11th Column of the command
ps aux|awk '{print $11}'

Use a different Field separator
cat /etc/passwd|awk -F ':' '{print $1}'

[tags]awk,sed,shell,script,output,filter,text,cli,linux,string,separator[/tags]

11 May

Simple uses for awk

Get the second column from the output

ps aux | awk '{print $2}'

Use a different column separator

cat /etc/passwd|awk '{print $1}'

[tags]awk,cli,linux,command,filter,text[/tags]