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Full Discussion: Using SSH to run a "BASH" script.
Top Forums UNIX for Dummies Questions & Answers Using SSH to run a "BASH" script. Post 302498881 by radoulov on Tuesday 22nd of February 2011 06:25:48 PM
Old 02-22-2011
I still think it would be better to fix your PKI setup first, because
you really don't need expect in this case.

So, with a correct PKI setup, to print the filenames that start with sh in /etc,
you could simply run the following command:

Code:
$ ssh 0 'printf "%s\n" /etc/sh*'
/etc/shadow
/etc/shadow-
/etc/shells

With expect you need something like this:
Code:
$ ./s 'printf "%s\n" /etc/sh*'
/etc/shadow
/etc/shadow-
/etc/shells

This is the content of the script s:

Code:
#!/usr/bin/expect --
set Machine 0
set Username "<your_username>"
set Password "<your_password>"
set Cmd [lindex $argv 0]
log_user 0
spawn ssh "$Username@$Machine"
while 1 {
  expect {
    "\(yes/no\)\?*" {
     send "yes\r"
     continue
    }
    "assword:" {
      send "$Password\r"
      break
    }
  }
}
expect "# "
send "$Cmd\r"
expect -re "\[^\n]*\n(.*)\n.*# "
puts $expect_out(1,string)

* You'll need to adjust the expect patterns in order to match your prompt.
 

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LEARN ABOUT FREEBSD

pwconv

pwconv(1M)						  System Administration Commands						pwconv(1M)

NAME

       pwconv - installs and updates /etc/shadow with information from /etc/passwd

SYNOPSIS

       pwconv

DESCRIPTION

       The pwconv command creates and updates /etc/shadow with information from /etc/passwd.

       pwconv relies on a special value of 'x' in the password field of /etc/passwd. This value of 'x' indicates that the password for the user is
       already in /etc/shadow and should not be modified.

       If the /etc/shadow file does not exist, this command will create /etc/shadow with  information  from  /etc/passwd.  The	command  populates
       /etc/shadow  with  the  user's  login  name,  password,	and  password  aging  information. If password aging information does not exist in
       /etc/passwd for a given user, none will be added to  /etc/shadow. However, the last changed information will always be updated.

       If the  /etc/shadow file does exist, the following tasks will be performed:

		Entries that are in the  /etc/passwd file and not in the /etc/shadow file will be added to the /etc/shadow file.

		Entries that are in the  /etc/shadow file and not in the /etc/passwd file will be removed from /etc/shadow.

		Password attributes (for example, password and aging information)  that exist in an /etc/passwd entry will be moved to the  corre-
		sponding entry in  /etc/shadow.

       The pwconv command can only be used by the super-user.

FILES

       /etc/opasswd

       /etc/oshadow

       /etc/passwd

       /etc/shadow

ATTRIBUTES

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

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

SEE ALSO

       passwd(1), passmgmt(1M), usermod(1M), passwd(4), attributes(5)

DIAGNOSTICS

       pwconv exits with one of the following values:

       0	SUCCESS.

       1	Permission denied.

       2	Invalid command syntax.

       3	Unexpected failure.  Conversion not done.

       4	Unexpected failure.  Password file(s) missing.

       5	Password file(s) busy.	Try again later.

       6	Bad entry in /etc/shadow file.

SunOS 5.10							    9 Mar 1993								pwconv(1M)
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