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Full Discussion: backup of files for a specific date
Top Forums Shell Programming and Scripting backup of files for a specific date Post 302219848 by BMDan on Wednesday 30th of July 2008 08:02:40 AM
Old 07-30-2008
Quote:
Originally Posted by akm9999
I want to write script for backing up archive logs files for specific date.
please give me idea for that.
Okay, given the amount of information you gave here, the following are all valid (in increasing order of absurdity):

Since you specified neither flexibility nor name format:
Code:
mv /var/log/*20070821* /mnt/archive
gzip -9 /mnt/archive/*



Since you didn't say where you wanted them to go, nor what you wanted to do with them afterwords:
Code:
mkdir "/dev/my backup directory"
mv /var/log/*2007* "/dev/my backup directory/"
sed -i '/:[0-9][0-5]:/ {d}' "/dev/my backup directory/*"

Finally, my pièce de résistance:
Code:
#!/bin/bash

if [ x$1 == x ]; then
    echo "Syntax: $0 <date>"
    exit 1
fi

cat $(grep -l $1 /var/log/*) | tar -cz | gzip -9 - > /dev/shm/archive-$1.tgz
rm -f $(grep -l $1 /var/log/*)

 

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LEARN ABOUT DEBIAN

archive

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

NAME

       archive - Usenet article archiver

SYNOPSIS

       archive [ -a archive ] [ -f ] [ -i index ] [ -m ] [ -r ] [ input ]

DESCRIPTION

       Archive	makes  copies of files specified on its standard input.  It is normally run either as a channel feed under innd(8), or by a script
       before expire(8) is run.

       Archive reads the named input file, or standard input if no file is given.  The input is taken as a set of lines.  Blank  lines	and  lines
       starting  with  a  number sign (``#'') are ignored.  All other lines should specify the name of a file to archive.  If a filename is not an
       absolute pathname, it is taken to be relative to /var/spool/news.

       Files are copied to a directory within the archive directory, /var/spool/news/news.archive.  The default is to create a hierarchy that mim-
       ics  the input files; intermediate directories will be created as needed.  For example, the input file comp/sources/unix/2211 (article 2211
       in the newsgroup comp.sources.unix) will be copied to /var/spool/news/news.archive/comp/sources/unix/2211.

OPTIONS

       -a archive
	      If the ``-a'' flag is used then its argument specifies the directory to archive in instead of the default.

       -f     If the ``-f'' flag is used, then all directory names will be flattened out, replacing the slashes with periods.  In this	case,  the
	      file would be copied to /var/spool/news/news.archive/comp.sources.unix/2211.

       -i     If  the  ``-i''  flag  is used, then archive will append one line to the specified index file for each article that it copies.  This
	      line will contain the destination name and the Message-ID and Subject headers.

       -m     Files are copied by making a link.  If that fails a new file is created.	If the ``-m'' flag is used, then the file will	be  copied
	      to the destination, and the input file will be replaced with a symbolic link pointing to the new file.

       -r     By default, archive sets its standard error to /var/log/news/errlog.  To suppress this redirection, use the ``-r'' flag.

EXIT STATUS

       If  the input is exhausted, archive will exit with a zero status.  If an I/O error occures, it will try to spool its input, copying it to a
       file.  If there was no input filename, the standard input will be copied to /var/spool/news/out.going/archive and the  program  will  exit.
       If  an input filename was given, a temporary file named input.bch (if input is an absolute pathname) or /var/spool/news/out.going/input.bch
       (if the filename does not begin with a slash) is created.  Once the input is copied, archive will try to rename this temporary file  to	be
       the name of the input file, and then exit.

EXAMPLES

       A typical newsfeeds(5) entry to archive most source newsgroups is as follows:

	      source-archive
		   :!*,*sources*,!*wanted*,!*.d
		   :Tc,Wn
		   :/usr/lib/news/bin/archive -f -i 
		       /usr/spool/news/news.archive/INDEX

HISTORY

       Written by Rich $alz <rsalz@uunet.uu.net> for InterNetNews.  This is revision 1.14, dated 1996/10/29.

SEE ALSO

       newsfeeds(5).

																	ARCHIVE(8)
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