need script for passwd , can't use expect tool

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07-20-2009

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You're trying to send input into the passwd program's stdin. If that were possible, my script would have no purpose. passwd ignores stdin. It opens /dev/tty directly. Then it inhibits character echo so you can't see the passwd as it is typed. It then will read the password. You must arrange for a pseudo tty to be present for passwd to use. (Or use a real one.)

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LEARN ABOUT LINUX

let

let(1)                                                             User Commands                                                            let(1)

NAME

       let - shell built-in function to evaluate one or more arithmetic expressions

SYNOPSIS

   ksh
       let arg...

DESCRIPTION

   ksh
       Each arg is a separate "arithmetic expression" to be evaluated.

EXIT STATUS

       The following exit values are returned:

       0        The value of the last expression is non-zero.

       1        The value of the last expression is zero.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       ksh(1), set(1), typeset(1), attributes(5)

SunOS 5.10                                                          15 Apr 1994                                                             let(1)

Infrastructure Monitoring