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Top Forums Shell Programming and Scripting Script to get checksum of itself Post 302991313 by SkySmart on Thursday 9th of February 2017 02:28:23 AM
Old 02-09-2017
Script to get checksum of itself

is there a way to get a script to do a checksum on itself?

something like this:

Code:
#!/bin/sh

myexpectedsig=$(cksum $0 | awk '{print $1}')
if [ ${myexpectedsig} -ne 83373373737 ] ; then
     exit
else
   who
   uptime
   date
fi

im looking for something that would always represent the running script, which is why im using "$0" above. but $0 may not be reliable. as in, it may not always refer to the running script file.
 

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cmhaltserv(1m)															    cmhaltserv(1m)

NAME
cmhaltserv - halt a service from the high availability package halt script SYNOPSIS
cmhaltserv [-v] service_name DESCRIPTION
cmhaltserv is used only in the high availability package halt script to halt a service. To stop a package service, the running package halt script must be running as superuser(UID=0), or as a user with access policy of FULL_ADMIN allowed in the cluster configuration file. See access policy in cmquerycl(1) or cmmakepkg(1). If any part of a package is marked down, the package halt script is executed as part of the recovery process. This command sends a SIGTERM signal to the PID and the corresponding process group of the monitored service. If this signal is caught by the running application, it is up to the application to ensure that the processes will be terminated. Options cmhaltserv supports the following options: -v Verbose output will be displayed. RETURN VALUE
cmhaltserv returns the following values: 0 Successful completion. 1 Command failed. EXAMPLES
To halt the service db1, do the following: # Halt the service db1 cmhaltserv db1 This line should only be executed within a package halt script. AUTHOR
cmhaltserv was developed by HP. SEE ALSO
cmmakepkg(1m), cmquerycl(1m), cmmodnet(1m), cmrunserv(1m). Requires Optional Serviceguard Software cmhaltserv(1m)
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