awk -F , '$3>22 {print $3}' ds awk '/alex/' ds

By OK -
ubuntu2@ubuntu2:~$ cat ds
name,city,age
alex,kiev,23
john,ny,22
miller,fra,25
ubuntu2@ubuntu2:~$ awk -F , '$3>22 {print $3}' ds
age
23
25
ubuntu2@ubuntu2:~$ awk '/alex/' ds
alex,kiev,23


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