How can I extract the output from a telnet command on a remote redis-server in a bash script.
I would do:
telnet remote-redis-ip 6379
LRANGE mylist 0 -1
And save the result in a variable. How can I reach this goal under a bash script?
Thanks,
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To save a command output in a variable, do `var=$(command)`. – fedorqui Oct 22 '13 at 11:05
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Yeah I know that but if I try: var="$(telnet remote-redis-ip 6379 | echo "LRANGE mylist 0 -1")" its doesn't works – Matt Oct 22 '13 at 11:30
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Mmmm the echo after the pipe doesn't have any sense. What do you want to do? What's the output of `telnet remote-redis-ip 6379` and what's `LRANGE mylist 0 -1`? – fedorqui Oct 22 '13 at 11:31
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Ouput of telnet is "connected" and LRANGE mylist 0 -1 return an IP list. – Matt Oct 22 '13 at 11:55
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OK so you want to connect to redis through telnet and then perform a command. See http://stackoverflow.com/q/7013137/1983854, then – fedorqui Oct 22 '13 at 11:57
1 Answers
16
try this
RET=`telnet remote-redis-ip 6379 << EOF
LRANGE mylist 0 -1
EOF`
echo $RET
and I think using expect automating telnet session using bash scripts post by fedorqui will be better
