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Accepted
yael
Asked: 2012-09-06 01:43:54 +0800 CST

expect script to support two expected characters

  • 772

I want to run sshd restart on Linux and Solaris machine via expect ( my expect run in my ksh script )

I create expect script so when expect see the prompt "#" then he run sshd restart

but the problem is that I run this expect also on solars and the prompt there is ">" so how to create one expect line that support "#" and ">" prompt

on linux

    expect #                {send "/etc/init.d/sshd restart\r"}

solaris 

   expect >                {send "/etc/init.d/sshd restart\r"}
linux

2 Answers

  1. Best Answer

    Use a glob-pattern: expect {[#>]}

    or a regexp: expect -re {#|>} -- the regexp pattern can get more elaborate. I recommend you anchor prompt matching to the end of the line. Often prompts end with a space, so you could: 

    expect -re {[#>] ?$}
    • 3

  2. You could put this in an if statement by checking the output of uname -s, or by checking the output of:

    cat /etc/release

    cat /etc/redhat-release

    cat /etc/lsb-release

    And use something like:

    if [[ $(uname -s) == "Linux" ]];then
   expect #  {send "/etc/init.d/sshd restart\r"}
else
   expect >  {send "/etc/init.d/sshd restart\r"}
fi

    I have not used ksh for some years so sorry if syntax is wrong!

    • 0