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Full Discussion: Remove lines older than 30 days
Top Forums Shell Programming and Scripting Remove lines older than 30 days Post 302883832 by Klashxx on Thursday 16th of January 2014 09:00:30 AM
Old 01-16-2014
A python:
Code:
#!/usr/bin/env python

import sys
from time import mktime,strptime 
from datetime import datetime

now  = datetime.now()
with open('sample.txt','rb') as f:
    for line in f:
        L = line.split('|')
        before = datetime.fromtimestamp(
                 mktime(strptime(L[0],'%d-%m-%Y %I:%M:%S %p')))
        old = now - before
        if  old.days < 30:
            sys.stdout.write(line)

 

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LEARN ABOUT SUSE

ipurge

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

 *

NAME

       ipurge - delete mail from IMAP mailbox or partition based on age or size

SYNOPSIS

       ipurge [ -f ] [ -C config-file ] [ -x ] [ -X ] [ -i ] [ -s ]
	      [ -d days | -b bytes | -k Kbytes | -m Mbytes ]
	      [ mailbox-pattern...  ]

DESCRIPTION

       Ipurge  deletes	messages from the mailbox(es) specified by mailbox-pattern that are older or larger than specified by the -d, -b, -k or -m
       options.  If no mailbox-pattern is given, ipurge works on all mailboxes.  If the -x option is given, the message age and  size  MUST  match
       exactly those specified by -d, -b, -k or -m.  The are no default values, and at least one of -d, -b, -k or -m MUST be specified.

       Ipurge  by  default  only deletes mail below shared folders, which means that mails in mailbox(es) below INBOX.* and user.* stay untouched.
       Use the option -f to also delete mail in mailbox(es) below these folders.

       Ipurge reads its configuration options out of the imapd.conf(5) file unless specified otherwise by -C.

OPTIONS

       -f     Force deletion of mail in all mailboxes.

       -C config-file
	      Read configuration options from config-file.

       -d days
	      Age of message in days.

       -b bytes
	      Size of message in bytes.

       -k Kbytes
	      Size of message in Kbytes (2^10 bytes).

       -m Mbytes
	      Size of message in Mbytes (2^20 bytes).

       -x     Perform an exact match on age or size (instead of older or larger).

       -X     Use delivery time instead of Date: header for date matches

       -i     Invert match logic: -x means not equal, date is for newer, size is for smaller

       -s     Skip over messages that have the Flagged flag set.

FILES

       /etc/imapd.conf

CMU
								   Project Cyrus							 IPURGE(8)
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