linux - how to run command on telnet command prompt in perl script -


i executing telnet command in perl script below.

$telnetoutput = `telnet localhost 4505`; print "\n telnet command output: $telnetoutput \n";  $clients = `clients`; print"\n $clients\n";  $clientnumber_or_anyotherkey = `1`; print "\n $clientnumber_or_anyotherkey \n";  $pollers = `pollers`; print "\n $pollers\n";`

but after running $telnetoutput = `telnet localhost 4505`; command, know open telnet command prompt other commands still executing in same old command prmopt it's saying clients or 1 or pollers not recognized internal or external commands.

can 1 me out pls? in advanch

communicating external processes telnet more complicated might imagine, have correctly handle buffering, waiting input, , on.

the canonical way approach use expect ( https://metacpan.org/module/rgiersig/expect-1.21/expect.pod ) if need full interaction.

if don't need interaction remote command runner ssh or rsh (which can call perl of course) sufficient.


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