10-25-2013
Want to remove all lines but not latest 50,000 lines from a file
Hi,
I have a huge file which has Lacs of lines. File system got full.
I want your guys help to suggest me a solution so that I can remove all lines from that file but not last 50,000 lines. I want solution which can remove lines from existing file so that I can have some space left with.
Last edited by prashant2507198; 10-25-2013 at 05:40 AM..
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LEARN ABOUT REDHAT
overview.fmt
OVERVIEW.FMT(5) File Formats Manual OVERVIEW.FMT(5)
NAME
overview.fmt - format of news overview database
DESCRIPTION
The file <pathetc in inn.conf>/overview.fmt specifies the organization of the news overview database. Blank lines and lines beginning with
a number sign (``#'') are ignored. The order of lines in this file is important; it determines the order in which the fields will appear
in the database.
Most lines will consist of an article header name, optionally followed by a colon. A trailing set of lines can have the word ``full''
appear after the colon; this indicates that the header should appear as well as its value.
If this file is changed, new overview records will be constructed with the modified format. If it is desired to update existing records,
it is necessary to rebuild the existing overview database using makehistory(8) after removing all existing overview files.
``Xref:full'' must be included, or innd(8) and other programs which utilize overview method cannot start.
The default file, show below, is compatible with Geoff Collyer's ``nov'' package:
Subject:
From:
Date:
Message-ID:
References:
Bytes:
Lines:
Xref:full
Usually the only modifications which should be made to the default file are additions of new fields to the end of the file; all such fields
should have ``full'' after the colon. The first eight fields should remain in the same order as above.
HISTORY
Written by Rich $alz <rsalz@uunet.uu.net> for InterNetNews. Intended to be compatible with the nov package written by Geoff Collyer
<geoff@world.std.com>. This is revision 1.6.6.3, dated 2002/01/05.
SEE ALSO
inn.conf(5)
OVERVIEW.FMT(5)