expect script 예제

1. Shell 스크립트내 expect 넣기

#!/bin/sh
COMMAND1="export LANG=C"

COMMAND2="cat /etc/shadow | grep root"
PW=`cat passwd.txt`
expect -c "
set timeout 5
spawn env LANG=C su - root
expect 'Password:'
        send \"$PW\\r\"
send \"$COMMAND1\\r\"

send \"$COMMAND2\\r\"
expect eof
"
echo "=============================================="
echo -e "\n"

 

2. expect shell

sample.txt

set PW [exec cat passwd.txt] set timeout 5 spawn env LANG=C su - root expect "Password:" send "${PW}\n" sleep 1 send "cat /etc/shadow\r" send "lshw\r" expect eof

실행

expect sample.txt

 

참조: https://phoenixnap.com/kb/linux-expect