mas quando executo aparece esse erro:
./murofogo.sh: line 1: [entrada: command not found
./murofogo.sh: line 4: [entrada: command not found
./murofogo.sh: line 9: [lp: command not found
./murofogo.sh: line 17: [aceitar: command not found
./murofogo.sh: line 20: [aceitar: command not found
Bad argument `lp'
Try `iptables -h' or 'iptables --help' for more information.
ping: unknown host lp
tirei as aspas, mas continuou dando o mesmo erro.
sou iniciante ainda, desculpem os eros óbvios.