Delete files older than 1week(dates need to be calculate based on file name) Post: 302999618

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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

06-23-2017

Moderator

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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bashbug-64

BASHBUG(1)						      General Commands Manual							BASHBUG(1)

NAME

       bashbug - report a bug in bash

SYNOPSIS

       bashbug [--version] [--help] [email-address]

DESCRIPTION

       bashbug	is  a shell script to help the user compose and mail bug reports concerning bash in a standard format.	bashbug invokes the editor
       specified by the environment variable EDITOR on a temporary copy of the bug report format outline. The user must fill  in  the  appropriate
       fields  and  exit  the  editor.	 bashbug  then	mails the completed report to bug-bash@gnu.org, or email-address.  If the report cannot be
       mailed, it is saved in the file dead.bashbug in the invoking user's home directory.

       The bug report format outline consists of several sections.  The first section provides information about the  machine,	operating  system,
       the  bash  version, and the compilation environment.  The second section should be filled in with a description of the bug.  The third sec-
       tion should be a description of how to reproduce the bug.  The optional fourth section is for a proposed fix.  Fixes are encouraged.

ENVIRONMENT

       bashbug will utilize the following environment variables if they exist:

       EDITOR Specifies the preferred editor. If EDITOR is not set, bashbug defaults to emacs.

       HOME   Directory in which the failed bug report is saved if the mail fails.

       TMPDIR Directory in which to create temporary files and directories.

SEE ALSO

       bash(1)

AUTHORS

       Brian Fox, Free Software Foundation
       bfox@gnu.org

       Chet Ramey, Case Western Reserve University
       chet@po.cwru.edu

GNU Bash-4.0							   1998 July 30 							BASHBUG(1)