This script enables a node into a pool from an old F5 LoadBalancer's pool.

F5_enableHost.sh

#!/bin/bash
which expect > /dev/null
if [ "$?" -eq "1" ];then echo FAILURE
else
if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ];then echo FAILURE Some var is undefined set PASS $1 POOL $2 ipAndPort $3;exit;fi
PASS=$1 
POOL=$2 
ipAndPort=$3
tempFile=/tmp/resultado
#Variable
scriptName=/tmp/enableNode.exp
expectCommand="ssh theeye@10.2.2.2 \"modify ltm pool \$pool members modify { $ipAndPort  { state up session enabled } }\""
#
rm $tempFile
cat <<EOF > $scriptName
#!/usr/bin/expect -f

set password [lindex \$argv 0];
set pool [lindex \$argv 1];

set timeout -1
spawn $expectCommand
sleep 1
expect "Password: "
send "\$password\r"
expect eof

EOF

chmod +x $scriptName
state="success" 
expect $scriptName $PASS $POOL 
echo $state
fi