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Shell Programming and Scripting
Korn script to access multiple host and collect data
Post 302675379 by blinkingdan on Monday 23rd of July 2012 02:34:57 AM
07-23-2012
Korn script to access multiple host and collect data
Hi, I'm newbie in Korn scripting as well as in Unix. I need to have a script to do the following.
1) ssh multiple hosts
-In my case, login credentials are not an issue as all keys authorized by default. Example of host IP (24.35.14.6, 24.35.14.7, 24.35.14.8, 24.35.14.9, 24.35.14.10)
2) do df -Ph | grep LR in every host and copy this line into /tmp/vvv. The line should be something like this. "hostname" : "df -Ph output"
3) After those lines, then append with this below.
"hostname" : "number of the line in this hostname"
4) Total number of df -Ph lines in all hostnames must be added above all the lines. Means the amount of total should be in first line.
Is this possible to do? Please help. And please brief in short sentence for every line of command as it may help me to know what the command does. I'm learning the script but I must do this task urgently. Your help is very much appreciated.......
1) ssh multiple hosts
-In my case, login credentials are not an issue as all keys authorized by default. Example of host IP (24.35.14.6, 24.35.14.7, 24.35.14.8, 24.35.14.9, 24.35.14.10)
2) do df -Ph | grep LR in every host and copy this line into /tmp/vvv. The line should be something like this. "hostname" : "df -Ph output"
3) After those lines, then append with this below.
"hostname" : "number of the line in this hostname"
4) Total number of df -Ph lines in all hostnames must be added above all the lines. Means the amount of total should be in first line.
Is this possible to do? Please help. And please brief in short sentence for every line of command as it may help me to know what the command does. I'm learning the script but I must do this task urgently. Your help is very much appreciated.......
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LEARN ABOUT POSIX
ssh-argv0
SSH-ARGV0(1) BSD General Commands Manual SSH-ARGV0(1) NAME
ssh-argv0 -- replaces the old ssh command-name as hostname handling SYNOPSIS
hostname | user@hostname [-l login_name] [command] hostname | user@hostname [-afgknqstvxACNTX1246] [-b bind_address] [-c cipher_spec] [-e escape_char] [-i identity_file] [-l login_name] [-m mac_spec] [-o option] [-p port] [-F configfile] [-L port:host:hostport] [-R port:host:hostport] [-D port] [command] DESCRIPTION
ssh-argv0 replaces the old ssh command-name as hostname handling. If you link to this script with a hostname then executing the link is equivalent to having executed ssh with that hostname as an argument. All other arguments are passed to ssh and will be processed normally. OPTIONS
See ssh(1). FILES
See ssh(1). AUTHORS
OpenSSH is a derivative of the original and free ssh 1.2.12 release by Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo de Raadt and Dug Song removed many bugs, re-added newer features and created OpenSSH. Markus Friedl contributed the support for SSH protocol versions 1.5 and 2.0. Jonathan Amery wrote this ssh-argv0 script and the associated documentation. SEE ALSO
ssh(1) Debian Project September 7, 2001 Debian Project