Synopsis:
   on [<modes>]exec_prompt [<serial#>] [-|^]<match> { <action> }

Description:
   This hook is triggered whenever an EXECed process displays a "prompt".
   More precisely, it is triggered when the process returns any line of
   output that is not terminated by a newline.  This is generally the case
   with interactive commands, such as nslookup(1).

Parameters:
   $0   process number of name of the EXECed process
   $1   prompt string to look for

Examples:
   To hook the prompt when using nslookup interactively:
      on ^exec_prompt "% >" {
         assign foo $0
         input "nslookup> " {
            msg %${foo} $*
         }
      }

See Also:
   exec(5); input(5); on(5) exec, exec_errors, exec_exit