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Top Forums Shell Programming and Scripting Delete all log files older than 10 day and whose first string of the first line is "MSH" or "<?xml" Post 302991883 by Hiroshi on Friday 17th of February 2017 12:10:56 PM
Old 02-17-2017
Delete all log files older than 10 day and whose first string of the first line is "MSH" or "<?xml"

Dear Ladies & Gents,

I have a requirement to delete all the log files in /var/log/test directory that are older than 10 days and their first line begin with "MSH" or "<?xml" or "FHS". I've put together the following BASH script, but it's erroring out:

Code:
for filename in $(find /var/log/test -type f -mtime +10)
do
        read -r firstLine < $filename
        echo "$firstLine"
either        echo "${firstLine:0:3}"     # "${firstLine:0:3}": bad substitution
or             echo "${cut -c1-8}"         # "${cut -c1-8}": bad substitution

        if [ "${firstLine:0:3}" = "MSH" ] || [ "${firstLine:0:3}" = "FHS" ] || [ "${firstLine:0:5}" = "<?xml" ]
        then
                echo $filename >> /var/log/test/my2.log     # Just a log file to keep track of which files got deleted
##              rm $filename
        fi
done

*****************************************************************

Please assist.
Many thanks in advance, you guys/gals are awesome!



Moderator's Comments:
Mod Comment Please use CODE tags as required by forum rules!

Last edited by RudiC; 02-17-2017 at 01:30 PM.. Reason: Added CODE tags.
 

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FAXCRON(8)						      System Manager's Manual							FAXCRON(8)

NAME
faxcron - HylaFAX routine maintenance script SYNOPSIS
/usr/sbin/faxcron [ -n ] [ -l lastrun ] DESCRIPTION
faxcron is a command script that does routine upkeep tasks in a HylaFAX spooling directory hierarchy. This script is intended to be invoked from cron(8) on behalf of the fax user (often the ``fax'' user is uucp) once a day, with the standard output sent by mail to the HylaFAX administrator. For example, the following crontab might be set up for the fax user: 25 23 * * * sh /usr/sbin/faxcron | mail FaxMaster The faxcron script does the following work: o report statistics for facsimile transmitted since the last time faxcron was run. o report statistics for facsimile transmitted in the past week. o report statistics for facsimile received since the last time faxcron was run. o report statistics for facsimile received in the past week. o report any recent calls that failed suspiciously and return the associated trace log; o purge data that is 30 days or older from the remote machine information directory; o delete information that is 30 days or older from session trace log files; o remove files from the tmp directory that are older than 1 day; o remove files in the received facsimile queue that are 7 days or older; o report sites that are currently having jobs rejected; and o force all session log files to be owned by the fax user and kept with protection mode 644. OPTIONS
-n Forces faxcron to run without updating any files. -l lastrun Forces the notion of the last time that faxcron was run to be lastrun. The value of lastrun is a date and time string of the form ``MM/DD/YY HH:MM'' (the date(1) format string ``%D %H:%M''). -info n Set the expiration time for data in the info database to be n days. -log n Set the expiration time for session log data to be n days. -rcv n Set the expiration time for files in the received facsimile queue to be n days. -tmp n Set the expiration time for files in the tmp directory to be n days. -mode m Set the file protection mode for session logs to m (a command line argument to chmod(1)). NOTES
This script requires nawk(1) or gawk(1) and a date (1) program that supports the ``+format'' option. If session logs are to be kept private this script must be modified to filter out sensitive information such as calling card numbers. (It should also be run with ``-mode 0600'' so that session log files are not publicly readable.) FILES
/var/spool/hylafax spooling area /var/spool/hylafax/status/lastrun timestamp of last run /usr/sbin/xferfaxstats for generating transmit statistics /usr/sbin/recvstats for generating receive statistics /var/spool/hylafax/tmp/faxcronXXXX temporary file for truncating session logs /var/spool/hylafax/tmp/faxlogXXXX temporary file for logs of failed calls SEE ALSO
cron(8), faxq(8), faxgetty(8), faxsend(8), xferfaxstats(8), recvstats(8), hylafax-server(5) May 12, 1996 FAXCRON(8)
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