====== Cut Last 3 Char from Output AWK ======
Memotong 3 string terakhir dari output yang dihasilkan oleh awk

<code>
cat /var/log/exim/mainlog | awk '{print $1" "$2}' | head -n 5
</code>
hasil
<code>
2022-03-06 03:22:55
2022-03-06 03:22:55
2022-03-06 03:22:55
2022-03-06 03:22:55
2022-03-06 03:22:55
</code>

kita potong
<code>
cat /var/log/exim/mainlog | awk '{print $1" "substr($2, 1, length($2)-3)}' | head -n 5
</code>

Output
<code>
2022-03-06 03:22
2022-03-06 03:22
2022-03-06 03:22
2022-03-06 03:22
2022-03-06 03:22
</code>