====== Bash Command Cut ======
Command cut berfungsi untuk memotong string dan berikut adalah beberapa tutorial
===== Menghapus comma dari hasil tail =====
Menghapus string comma dari hasil output tail

file log
<code>
140.213.7.40, lip=51.79.129.55, TLS, session=<srEfkWiwrZiM1Qco>
140.213.7.40, lip=51.79.129.55, TLS, session=<srEfkWiwrZiM1Qco>
139.99.30.6, lip=51.79.129.55, session=<h6hSkWiwjqeLYx4G>
139.99.30.6, lip=51.79.129.55, session=<h6hSkWiwjqeLYx4G>
114.122.203.12, lip=51.79.129.55, TLS, session=<bsaqkWiwFthyessM>
</code>

dilakukan filter dengan cara
<code>
tail -n 200 /var/log/maillog | grep failed | awk -F"rip=" ' {print $2}' | cut -d, --output-delimiter ' ' -f 1,2
</code>
hasil output
<code>
125.161.136.199  lip=51.79.129.55
125.161.131.93  lip=51.79.129.55
125.161.131.93  lip=51.79.129.55
114.124.142.92  lip=51.79.129.55
36.88.112.185  lip=51.79.129.55
</code>