cut
How to cut lines separated by multiple spaces?
Here is an example of cut command, that will remove all PHP packages from system
dpkg -l | grep php | cut -d" " -f3 | xargs apt purge -y
Get user names
cut -d':' -f1 /etc/passwd
Display users with SSH enabled
grep "/bin/bash" /etc/passwd | cut -d':' -f1,6
List all IPs that have accessed admin area from Apache Log
cat LOG_FILE_NAME_HERE | grep '/admin/' | cut -d' ' -f1 | sort -n | uniq
See Linux Commands