how to read remote file

From: rashmi (nsrashmi_at_gmail.com)
Date: 03/30/05 

Date: Wed, 30 Mar 2005 01:59:13 -0500

1.login to the other system
2.then open file
3.search for a string
4.return the search results
to the above set of tasks i tried using
 spawn ssh -l "root" "mysystem"
 expect spawn_id
 expect "Password:"
 send "90909\r"
 expect "*#"

 set file [ open "/tmp/hostname.org" "r" ]
        while { [gets $file buf] != -1 } {
         puts $buf

          if { [ string match "*string*" $buf ] } {
                stty -echo
                send "echo"

          }

        }
but i found this does'nt work can instead i'm using traditional cat ,grep
,echo $? ,expect 0/!=0
method.
Does any one have the better way?

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