Execute multiple commands at once

Sometimes you'd like to automate execution of command sequences or create a command alias that would trigger a series of commands. One way of achieving this is by creating an EEM applet. For example, to clear IP routing table and reset BGP neighbors, define the following EEM applet:
event manager applet ClearAll
 event none
 action 1.0 cli command "clear ip route *"
 action 2.0 cli command "clear ip bgp *"
You can trigger this applet with the event manager run ClearAll command or you could configure a command alias, for example alias exec cleanup event manager run ClearAll.

Note: this article is part of You've asked for it series.

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13 comments:

  1. Anonymous 17 April 2007 21:03
    How can you pass a parameter?
  2. Ivan Pepelnjak 17 April 2007 21:27
    You cannot pass a parameter when using EEM applet, you need Tcl script to do that. I'll cover that in a future post.
  3. lizu 27 July 2007 17:00
    Please show the example with the interactive tcl script - how to pass the parameter to the command
  4. lizu 17 August 2007 15:58
    ok but can you make a script with deals with such situation - sometimes when you put command you have to confirm it

    like e.g reload
    [confirm] ENTER
    how to confirm command in the tcl script ?
  5. Ivan Pepelnjak 20 August 2007 22:30
    I was able to figure out the reload specific solution. No luck about other prompty commands yet.
  6. lizu 21 August 2007 15:18
    Yes reload is specific but other clear or delete commands which require confirmation are different maybe a interior variable some kind of event handler? I am still looking for this
  7. Gabriel Lema 20 June 2014 22:12
    Thanks for the post!
    I configured the following applet:
    event manager applet DebugSIP
    event none
    action 1.0 cli command "debug ccsip messages"
    action 2.0 cli command "terminal monitor"
    !
    I run it with:# event manager run DebugSIP
    Yet I don't get any messages on the terminal..
    Any idea why?
    Thanks again,
    Gabriel
    Replies
    1. Ivan Pepelnjak 21 June 2014 07:27
      The "cli command" lines are executed in a context of a different VTY line (EEM script opens a "console" session to execute them), so the "terminal monitor" command doesn't apply to your current session. I wrote a blog post about this, just search some more ;)

      A tcl script executed with tcl command might do the trick (don't remember the details, it's been a long time). Yet again, I probably published at least one example of how that's done.
    2. Terrenos Sta Isabel 23 June 2014 15:55
      Thanks for your reply! I tried the following TCL script:
      puts [open "flash:debugSIPon" w+] {
      exec "debug ccsip messages"
      exec "terminal monitor"
      }
      when I execute it
      tclsh flash:debugSIPon
      I don't get any error, but no output to vty either.
      Thanks
    3. Ivan Pepelnjak 23 June 2014 17:11
      Don't use "exec", just include CLI commands in TCL script. See

      http://wiki.nil.com/Executing_IOS_commands_from_Tcl_shell
  8. Gabriel Lema 23 June 2014 18:21
    I was finally able to combine tcl + alias to turn sip debug with just typing dsip, and turn it off with usip, thanks to http://blog.ipspace.net/2008/01/copy-text-files-into-router-flash.html and this one.
    Thanks for your quick response!!
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