i was just missing a small note akin to "which becomes all the more powerful by combining these commands" and then make a totally readable example such as this

i was just missing a small note akin to "which becomes all the more powerful by combining these commands" and then make a totally readable example such as this one some_file=example.sh; tail -n +$(( $(wc -l $some_file | grep -o "[0-9]\+") - 5 )) $some_file