Sponsored Content
Top Forums Shell Programming and Scripting Ssh to remote server loop is breaking Post 302757063 by raghur77 on Thursday 17th of January 2013 04:19:37 AM
Old 01-17-2013
Linux Ssh to remote server loop is breaking

hi All,

cat login.list
Code:
server1 userid1
server2 userid2
server3 userid3

----------------------------------------

Code:
#SSHSCRIPT.ksh
FILE=login.list
 
while read vah vah_id
do
       ssh  $vah -l $vah_id "pwd"
done < "$FILE"

-----------------------------------------

When i execute ksh -x SSHSCRIPT.ksh it executes only one loop and exist, Please assist me here

OUTPUT:
Code:
 ksh -x SSHSCRIPT.ksh 
 + FILE=login.list
 + read vah vah_id
+ IFS=
+ ssh server1 -l userid1 pwd
/server1/admin
+ read vah vah_id
+ IFS=


Last edited by Franklin52; 01-17-2013 at 05:27 AM.. Reason: Please use code tags for data and code samples
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

SSH Remote Server issue

I have a script that connects to remote servers using a public key. Some of the servers are not set up for the public key and I receive the following when I attempt to ssh: The authenticity of host 'XXX' can't be established. RSA key fingerprint is... (1 Reply)
Discussion started by: la_womn
1 Replies

2. UNIX for Dummies Questions & Answers

Is it possible for a server to be both a remote and client SSH host?

Hi, Not sure if this is possible, I have a server (SERVER1) that is currently set up as a remote SSH host. My client SSH host (SERVER2) is connecting to SERVER1 to scp a file with no password. I now have a need to set up a third server (SERVER3) as a remote SSH host and I need SERVER1 as a... (4 Replies)
Discussion started by: tatchel
4 Replies

3. Shell Programming and Scripting

while loop stops after first iteration - remote ssh exit command problem?

I have written the following script to update some Debian boxes. #!/bin/bash mxg_hosts_file="/etc/mxg/ssh-hosts" while read line ; do mxg_host="$(echo ${line} | awk -F":" '{print $1}')" mxg_port="$(echo ${line} | awk -F":" '{print $2}')" echo "Connecting and Upgrading... (3 Replies)
Discussion started by: jelloir
3 Replies

4. Shell Programming and Scripting

Script to ssh to remote server

Hi All, I need to prepare a script. Description: Currently i am in server "x(ubuntu os)", here i need to develop a script to ssh to another server "y(ubuntu os)", i have password less authentication to "y". i have done the below #!/bin/bash #ssh to the server "y" and confirming i am... (2 Replies)
Discussion started by: kumar85shiv
2 Replies

5. UNIX for Advanced & Expert Users

Unable to ssh to remote server

Hi, I have two SunOs sparc servers mac1 and mac2. I have exchanged keys between them inorder to passwordless login ssh from mac1 to mac2. However, it is failing after authentication. Part of the debug is as below. Please suggest whats wrong and how do i fix that!! Note: i do not have... (1 Reply)
Discussion started by: mohtashims
1 Replies

6. Shell Programming and Scripting

While loop breaking when using "ssh" command inside

Hi , I am trying to read a list of hosts from a config file and trying to get file list from that host. For this I have used one while loop. cat "$ARCHIVE_CFG_FILE" | sed '/^$/d' | sed '/^#/d' | while read ARCHIVE_CFG do SOURCE_SERVER_NAME=`echo "$ARCHIVE_CFG" | awk -F '|' '{ print... (2 Replies)
Discussion started by: Anupam_Halder
2 Replies

7. Shell Programming and Scripting

Multi server access through remote server using ssh

Team, Presently I have 5 ip address kept in ip_abc1 file, for each of the ip address listed, i need to login on each ipaddress one at a time and login as below for that specific ip address ssh -p 8101 karaf@<ip.address_for the specific ip address as logged in> password features:list... (4 Replies)
Discussion started by: whizkidash
4 Replies

8. Shell Programming and Scripting

Input to while loop in remote machine using ssh

Hello I am writing a script in a local machine, i am using ssh, here i am not able to using back ticks & input file to while loop. here is my script ssh -q server1 a=`ps -ef | grep ccms | awk {print $1}` b=`ps -ef | grep mss | awk {print $1}` # above lines are not working, so i redirected... (12 Replies)
Discussion started by: nanz143
12 Replies

9. Shell Programming and Scripting

Declare and grep a variable via ssh/remote/loop

If I am running a bash command, and some awk getting the ethernet adapter on the local machine. It works fine. But if I will run it from the remote, it is EMPTY on echo and throwing error in grep. Thank you This work perfectly fine $ f=`/sbin/ip a|grep 127.127 | awk '{print $NF }' ` ; ip... (2 Replies)
Discussion started by: kenshinhimura
2 Replies
ppmtosixel(1)						      General Commands Manual						     ppmtosixel(1)

NAME
ppmtosixel - convert a portable pixmap into DEC sixel format SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC LJ250 color inkjet printer. If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file. OPTIONS
-raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com- pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni- tude larger than a compressed file and prints much slower. -margin If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci- fied, a 1.5 inch left margin will offset the image. PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?. BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation. SEE ALSO
ppm(5) AUTHOR
Copyright (C) 1991 by Rick Vinci. 26 April 1991 ppmtosixel(1)
All times are GMT -4. The time now is 07:48 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy