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Full Discussion: Delete files older than 1week(dates need to be calculate based on file name)
Operating Systems Linux Red Hat Delete files older than 1week(dates need to be calculate based on file name) Post 302999618 by rbatte1 on Friday 23rd of June 2017 11:00:38 AM
Old 06-23-2017
Would it be a problem to extract the file creation time from the file name and use touch to set the time correctly? You can then use find far easier.

Is the date format year, month, day, hour, minute, second, millisecond? You can grab that bit and make a decision on that if you calculate the date before you want to erase the files, something like this:-
Code:
#!/bin/bash

# Calculate the cut-off value
earliest_date_allowed=$(date +%Y%m%d%H%M%S -d"1 week ago")
echo "\$earliest_date_allowed=\"$earliest_date_allowed\" or $(date -d"1 week ago")"
while read file
do
   # Extract the date part
   filedate="${file#*-}"            # removes up to first hyphen of filename
   filedate="${filedate%???-*}"     # Removes milliseconds to the end
   if [ $filedate -lt $earliest_date_allowed ]
   then
      echo "I would purge $file"
   fi
done < <(ls -1)                     # Run ls as input for the loop

It doesn't work with milliseconds though and relies on GNU-date. Are these a problem?


Does this get you close?
Robin
Last edited by rbatte1; 06-23-2017 at 12:02 PM.. Reason: Added a code comment
 

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LEARN ABOUT CENTOS

auvirt

AUVIRT(8)						  System Administration Utilities						 AUVIRT(8)

NAME

       auvirt - a program that shows data related to virtual machines

SYNOPSIS

       auvirt [ OPTIONS ]

DESCRIPTION

       auvirt  shows  a  list of guest sessions found in the audit logs. If a guest is specified, only the events related to that guest is consid-
       ered. To specify a guest, both UUID or VM name can be given.

       For each guest session the tool prints a record with the domain name, the user that started the guest, the time when the guest was  started
       and the time when the guest was stoped.

       If  the	option	"--all-events"	is given a more detailed output is shown. In this mode other records are shown for guest's stops, resource
       assignments, host shutdowns and AVC and anomaly events. The first field indicates the event type and can have the following values:  start,
       stop, res, avc, anom and down (for host shutdowns).

       Resource  assignments have the additional fields: resource type, reason and resource. And AVC records have the following additional fields:
       operation, result, command and target.

       By default, auvirt reads records from the system audit log file. But --stdin and --file options can be specified to change this behavior.

OPTIONS

       --all-events
	      Show records for all virtualization related events.

       --debug
	      Print debug messages to standard output.

       -f, --file file
	      Read records from the given file instead from the system audit log file.

       -h, --help
	      Print help message and exit.

       --proof
	      Add after each event a line containing all the identifiers of the audit records used to calculate the event.  Each  identifier  con-
	      sists of unix time, milliseconds and serial number.

       --show-uuid
	      Add the guest's UUID to each record.

       --stdin
	      Read records from the standard input instead from the system audit log file.  This option cannot be specified with --file.

       --summary
	      Print  a	summary  with  information  about the events found. The summary contains the considered range of time, the number of guest
	      starts and stops, the number of resource assignments, the number of AVC and anomaly events, the number of  host  shutdowns  and  the
	      number of failed operations.

       -te, --end [end-date] [end-time]
	      Search for events with time stamps equal to or before the given end time. The format of end time depends on your locale. If the date
	      is omitted, today is assumed. If the time is omitted, now is assumed. Use 24 hour clock time rather than AM or PM to  specify  time.
	      An example date using the en_US.utf8 locale is 09/03/2009. An example of time is 18:00:00. The date format accepted is influenced by
	      the LC_TIME environmental variable.

	      You may also use the word: now, recent, today, yesterday, this-week, week-ago, this-month,  this-year.  Today  means  starting  now.
	      Recent  is  10 minutes ago. Yesterday is 1 second after midnight the previous day.  This-week means starting 1 second after midnight
	      on day 0 of the week determined by your locale (see localtime). This-month means 1 second after midnight on  day	1  of  the  month.
	      This-year means the 1 second after midnight on the first day of the first month.

       -ts, --start [start-date] [start-time]
	      Search  for events with time stamps equal to or after the given end time. The format of end time depends on your locale. If the date
	      is omitted, today is assumed. If the time is omitted, midnight is assumed. Use 24 hour clock time rather than AM or  PM  to  specify
	      time.  An example date using the en_US.utf8 locale is 09/03/2009. An example of time is 18:00:00. The date format accepted is influ-
	      enced by the LC_TIME environmental variable.

	      You may also use the word: now, recent, today, yesterday, this-week, this-month, this-year.  Today means starting at 1 second  after
	      midnight.  Recent is 10 minutes ago. Yesterday is 1 second after midnight the previous day.  This-week means starting 1 second after
	      midnight on day 0 of the week determined by your locale (see localtime). This-month means 1 second after midnight on day	1  of  the
	      month. This-year means the 1 second after midnight on the first day of the first month.

       -u, --uuid  UUID
	      Only show events related to the guest with the given UUID.

       -v, --vm  name
	      Only show events related to the guest with the given name.

EXAMPLES

       To see all the records in this month for a guest

       auvirt --start this-month --vm GuestVmName --all-events

SEE ALSO

       aulast(8), ausearch(8), aureport(8).

AUTHOR

       Marcelo Cerri

IBM Corp							     Dec 2011								 AUVIRT(8)
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