#!/usr/bin/expect -f set pwr [lindex $argv 0] set neg [lindex $argv 1] if { $pwr == "" } { set pwr 24 } if { $neg > 0 } { set neg "-" } spawn telnet localhost 4241 expect ">" send "enable\r" expect "#" send "trx 0 tx-power $neg$pwr\r" expect "#" send "exit\r" expect "#"