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Full Discussion: Compare text strings.
Top Forums Shell Programming and Scripting Compare text strings. Post 302422678 by vettec3 on Wednesday 19th of May 2010 06:24:58 AM
Old 05-19-2010
Compare text strings.

Hi Im trying to write a script that compare a text string.
But it fails, I think it adds a extra line feed to the result and fails beacuse of that.

The script.

Code:
DT=`date +'%Y%m%d%H%M%S'`
#ALARM_BIN=/users/alarms/ssa/alarms/bin
QUEUE_THR=10
#unset offset
#offset="***Server reports data not found"
#offset=330000
offset=`xntpdc -p |awk '{ print $7 }' |tail -1| (sed -e 's/^-//' -e 's/\.//')`
echo "$offset"
if [ "$offset" = "***Server reports data not found" ]; then
        echo "Connection to NTP server lost"
        ${ALARM_BIN}/alarm_raise NTPCHECK ntp_check 8 8505 MAJOR "Connection to NTP server lost" SSOO

        else
        if (( $offset > 300000 )); then
        echo "Client clock off by 0.3 seconds or more"
        ${ALARM_BIN}/alarm_raise NTPCHECK ntp_check 8 8507 MAJOR "Client clock off by 0.3 seconds or more" SSOO

        else
        echo "NTP server connection and client clock OK"
        ${ALARM_BIN}/alarm_raise NTPCHECK ntp_check 14 8606 CLEAR "NTP server connection and client clock OK" SSOO
        fi
fi

The result is as follows
If the ntp server is available it returns a number
Code:
ntp_check
0060277
NTP server connection and client clock OK

If the ntp server is unavailable
ntp_check
***Server reports data not found

./ntp_check[16]:   > 300000 : syntax error

It fails doing the comparision I dont understand why.
Why is there a blank line below
Code:
***Server reports data not found

Thanks.
 

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DH_INSTALLINIT(1)						     Debhelper							 DH_INSTALLINIT(1)

NAME
dh_installinit - install init scripts and/or upstart jobs into package build directories SYNOPSIS
dh_installinit [debhelperoptions] [--name=name] [-n] [-R] [-r] [-d] [--params] DESCRIPTION
dh_installinit is a debhelper program that is responsible for installing init scripts with associated defaults files, as well as upstart job files into package build directories. It also automatically generates the postinst and postrm and prerm commands needed to set up the symlinks in /etc/rc*.d/ to start and stop the init scripts. FILES
debian/package.init If this exists, it is installed into etc/init.d/package in the package build directory. debian/package.default If this exists, it is installed into etc/default/package in the package build directory. debian/package.upstart If this exists, it is installed into etc/init/package.conf in the package build directory. OPTIONS
-n, --noscripts Do not modify postinst/postrm/prerm scripts. -o, --onlyscripts Only modify postinst/postrm/prerm scripts, do not actually install any init script, default files, or upstart job. May be useful if the init script or upstart job is shipped and/or installed by upstream in a way that doesn't make it easy to let dh_installinit find it. -R, --restart-after-upgrade Do not stop the init script until after the package upgrade has been completed. This is different than the default behavior, which stops the script in the prerm, and starts it again in the postinst. This can be useful for daemons that should not have a possibly long downtime during upgrade. But you should make sure that the daemon will not get confused by the package being upgraded while it's running before using this option. -r, --no-restart-on-upgrade Do not stop init script on upgrade. --no-start Do not start the init script on install or upgrade, or stop it on removal. Only call update-rc.d. Useful for rcS scripts. -d, --remove-d Remove trailing d from the name of the package, and use the result for the filename the upstart job file is installed as in etc/init/ , and for the filename the init script is installed as in etc/init.d and the default file is installed as in etc/default/ . This may be useful for daemons with names ending in d. (Note: this takes precedence over the --init-script parameter described below.) -uparams --update-rcd-params=params -- params Pass params to update-rc.d(8). If not specified, defaults will be passed to update-rc.d(8). --name=name Install the init script (and default file) as well as upstart job file using the filename name instead of the default filename, which is the package name. When this parameter is used, dh_installinit looks for and installs files named debian/package.name.init, debian/package.name.default and debian/package.name.upstart instead of the usual debian/package.init, debian/package.default and debian/package.upstart. --init-script=scriptname Use scriptname as the filename the init script is installed as in etc/init.d/ (and also use it as the filename for the defaults file, if it is installed). If you use this parameter, dh_installinit will look to see if a file in the debian/ directory exists that looks like package.scriptname and if so will install it as the init script in preference to the files it normally installs. This parameter is deprecated, use the --name parameter instead. This parameter is incompatible with the use of upstart jobs. --error-handler=function Call the named shell function if running the init script fails. The function should be provided in the prerm and postinst scripts, before the #DEBHELPER# token. NOTES
Note that this command is not idempotent. dh_prep(1) should be called between invocations of this command. Otherwise, it may cause multiple instances of the same text to be added to maintainer scripts. SEE ALSO
debhelper(7) This program is a part of debhelper. AUTHORS
Joey Hess <joeyh@debian.org> Steve Langasek <steve.langasek@canonical.com> 9.20120909 2012-04-10 DH_INSTALLINIT(1)
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