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Full Discussion: Using expect
Top Forums Shell Programming and Scripting Using expect Post 302751543 by Ikaro0 on Friday 4th of January 2013 05:56:26 AM
Old 01-04-2013
Hi, JcDole

Why using expect that as far as I used it, can automate interactive sessions and then try to made an interactive session with it?

I use expect like the following:

Code:
#!/usr/bin/expect -f
log_file -a /logs/log_EXPECT
set userpass [lrange $argv 0 0]
set ipaddr [lrange $argv 1 1]   
set username [lrange $argv 2 2]
set timeout 10

spawn ssh $username@$ipaddr
match_max 100000
expect_after {
    eof         { send_log "\nEXP-ERROR---Could not connect to $ipaddr\n" ; exit 1 }
    }
sleep 1
expect {
        timeout     { send_log "\nEXP-ERROR---TIMEOUT Could not connect with  $ipaddr\n" ; exit 1 }
    "(yes/no)?"       {send "yes\n"}
    "*?assword:*"     {send "$userpass\n"}
    }
sleep 1
expect {
        "*?assword:*"     {  send_log "\nEXP-ERROR---User password for  $username incorrect or non existing user  $ipaddr\n" ; exit 1 }
        "?"         {sleep 2; send "\n" }
    }
.
.
now you sould be on shell , type more commands to be executed.

Hope this helps on any way.
Regards
 

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LEARN ABOUT PHP

setuid

SETUID(1)						      General Commands Manual							 SETUID(1)

NAME

       setuid - run a command with a different uid.

SYNOPSIS

       setuid username|uid   command [ args ]

DESCRIPTION

       Setuid  changes	user id, then executes the specified command.  Unlike some versions of su(1), this program doesn't ever ask for a password
       when executed with effective uid=root.  This program doesn't change the environment; it only changes the uid and then uses execvp() to find
       the command in the path, and execute it.  (If the command is a script, execvp() passes the command name to /bin/sh for processing.)

       For example,
	      setuid  some_user  $SHELL
       can be used to start a shell running as another user.

       Setuid  is  useful  inside  scripts that are being run by a setuid-root user -- such as a script invoked with super, so that the script can
       execute some commands using the uid of the original user, instead of root.  This allows unsafe commands (such as editors and pagers) to	be
       used  in  a  non-root  mode inside a super script.  For example, an operator with permission to modify a certain protected_file could use a
       super command that simply does:
	      cp protected_file temp_file
	      setuid $ORIG_USER ${EDITOR:-/bin/vi} temp_file
	      cp temp_file protected_file
       (Note: don't use this example directly.	If the temp_file can somehow be replaced by another user, as might be the case if it's kept  in  a
       temporary  directory,  there  will  be a race condition in the time between editing the temporary file and copying it back to the protected
       file.)

AUTHOR

       Will Deich

								       local								 SETUID(1)
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