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expect

Bash parameter expansion inside expect

What I'm trying to do:

./script 192.168.1.{1..100}

#!/bin/expect -f

set servers_ip [lindex $argv 0]
set servers_port [lindex $argv 1]

set timeout -1

foreach ip $servers_ip {
        puts "\nIP = $ip"
}

expected output:

IP = 192.168.1.1
IP = 192.168.1.2
IP = 192.168.1.3

Actual output:

IP=192.168.1.1

I just can't make the parameter expansion work, and I CANNOT use external files.

Solution

  • Your shell has already expanded the brace expansion before launching expect. The first 100 elements of $argv are individual IP addresses.

    Here, you want

    set servers_ip $argv

    then, iterating over them should give you what you want