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Top Forums UNIX for Dummies Questions & Answers How to pass variables in Expect command? Post 302541768 by mailkarthik on Monday 25th of July 2011 03:45:59 PM
Old 07-25-2011
How to pass variables in Expect command?

Hi All,
I need to frame a unix script to logon to a unix box. The credentials needs to be obtained from a property file on the same location.

I am trying to use 'expect' and 'spawn' command to meet this req.

When I am passing values, these commands are working fine. but when I am trying to pass variable, it is failing... Smilie

Command used :
Code:
expect -c 'spawn ssh $UNIX_USER@$UNIX_BOX ; expect password ; send "($UNIX_PWD)\n" ; interact'

Error Message:
Code:
can't read "UNIX_USER": no such variable
    while executing
"spawn ssh $UNIX_USER@$UNIX_BOX "

Appreciate your help.

-kt

Last edited by radoulov; 07-26-2011 at 03:43 PM.. Reason: Code tags!
 

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spawn.h(3HEAD)							      Headers							    spawn.h(3HEAD)

NAME
spawn.h, spawn - spawn SYNOPSIS
#include <spawn.h> DESCRIPTION
The <spawn.h> header defines the posix_spawnattr_t and posix_spawn_file_actions_t types used in performing spawn operations. The <spawn.h> header defines the flags that can be set in a posix_spawnattr_t object using the posix_spawnattr_setflags() function: POSIX_SPAWN_RESETIDS POSIX_SPAWN_SETPGROUP POSIX_SPAWN_SETSCHEDPARAM POSIX_SPAWN_SETSCHEDULER POSIX_SPAWN_SETSIGDEF POSIX_SPAWN_SETSIGMASK Inclusion of the <spawn.h> header can make visible symbols defined in the <sched.h>, <signal.h>, and <sys/types.h> headers. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
sched.h(3HEAD), semaphore.h(3HEAD), signal.h(3HEAD), types.h(3HEAD), attributes(5), standards(5) SunOS 5.11 10 Sep 2004 spawn.h(3HEAD)
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