[bash scripting] `contains_item` bash function. Check if an item is in an array

In case you’re not an iptables guru, you might want to create a couple scripts and put em somewhere on your $PATH. I’ve created two scripts called ban_ip and unban_ip. Create a file called ban_ip touch ban_ip chmod +x ban_ip Edit it and copy the following code inside: #!/bin/bash sudo iptables -A INPUT -s $1 […]