Sudo connect to a remote server and execute scripts in remote server
Hello Every one!!
I am trying to write a shell script which will connect to a remote server and execute scripts which are at a certain path in the remote server.
Before this I am using a sudo command to change the user.
The place where I am stuck is, I am able to connect to the remote server but neither am able to change the directory path nor I am able to execute scripts which I need to.
Also the log files which I have given in the script are not being created nor the log is being captured in the files even if I create them manually.
Below is the prototype of the script which I have written:
Code:
#!/bin/bash
#***************************************
ssh user@remote_server
if [ $? -eq 0 ];
then
echo "connection established successfully" >> path/to/log/file #(this log file is not being created nor is anything being inserted even if I create it manually)#
exit 0
else
echo "connection unsuccessful" >> path/to/log/file
fi
sh /path/to/remote/scripts/script_name
if [ $? -eq 0 ];
then
echo "script executed successfully" >> path/to/log/file #(this log file is not being created nor is anything being inserted even if I create it manually)#
else
echo "script not executed" >> path/to/log/file
fi
exit
Please suggest as where am I going wrong and what needs to be corrected.
Can't thank you all enough!!
Regards.
Moderator's Comments:
Please use code tags as required by forum rules!
Last edited by RudiC; 07-30-2016 at 06:30 AM..
Reason: Added code tags.
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LEARN ABOUT DEBIAN
cmannotifyd
cmannotifyd(8) CMAN Notification Daemon cmannotifyd(8)NAME
cmannotifyd - CMAN Notification Daemon
SYNOPSIS
cmannotifyd [-f] [-d]
DESCRIPTION
The cmannotifyd daemon talks to CMAN and provides a mechanism to notify external entities about cluster changes.
CMAN dispatches 3 kind of notifications:
- CMAN_REASON_TRY_SHUTDOWN when cman requests to all clients if it is allowed to shutdown.
- CMAN_REASON_STATECHANGE when cman detects a node joining or leaving the cluster.
- CMAN_REASON_CONFIG_UPDATE when a configuration change event has been detected/requested.
These notifications are then dispatched to the shell script cman_notify in the environment variable CMAN_NOTIFICATION.
cman_notify will then execute all the scripts in the configured notification directory (default: /etc/cluster/cman-notify.d) passing a very
minimal set of envvars including, of course, the CMAN_NOTIFICATION= type. The execution order is set by the filename as shown by "LC_ALL=C
ls -las".
cmannotifyd logs are stored in the default log file (/var/log/cluster/cmannotifyd.log).
cman_notify logs are stored in the default log file (/var/log/cluster/cman_notify.log). By default the output from the scripts executed by
cman_notify is redirected to /dev/null. Users can either set CMAN_NOTIFICATION_DEBUG=1 in their environment or set proper debug configura-
tion in cluster.conf to redirect scripts output to the cman_notify log file.
NOTES
cmannotifyd does not block on cman_notify nor check the exit status of the script.
Notifications are dispatched in the same order as they arrive, one by one.
CMAN_REASON_TRY_SHUTDOWN is passed to scripts for information only, they can not influence cman's decsion about whether or not to shut
down.
CMAN_REASON_STATECHANGE also implies CMAN_NOTIFICATION_QUORUM exported in the environment. CMAN_NOTIFICATION_QUORUM will be set to 1 (when
the node is part of a quorate cluster) or 0 (otherwise).
A template for cman_notify scripts can be found in the doc/ directory.
OPTIONS -f Run in the foreground (do not fork / daemonize).
-d Enable debug output.
November 2008 cmannotifyd(8)
07-30-2016
