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Full Discussion: Delete lines from file based on condition
Top Forums Shell Programming and Scripting Delete lines from file based on condition Post 302898193 by SriniShoo on Sunday 20th of April 2014 03:32:42 AM
Old 04-20-2014
Code:
awk -v d="$(date -d '1 days ago' '+%h %d')" 'NR == FNR {if($0 !~ "^"d) {next}; n = (n == "") ? FNR : n; next} FNR >= n' messages-2 messages-2 > messages-2.tmp && mv messages-2.tmp messages-2

 

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LEARN ABOUT DEBIAN

fs_messages

FS_MESSAGES(1)						       AFS Command Reference						    FS_MESSAGES(1)

NAME

       fs_messages - Sets whether the Cache Manager writes log messages

SYNOPSIS

       fs messages [-show (user|console|all|none)] [-help]

       fs me [-s (user|console|all|none)] [-h]

DESCRIPTION

       The fs messages command controls whether the Cache Manager displays status and warning messages on user screens, the client machine
       console, on both, or on neither.

       There are two types of Cache Manager messages:

       o   User messages provide user-level status and warning information, and the Cache Manager directs them to user screens.

       o   Console messages provide system-level status and warning information, and the Cache Manager directs them to the client machine's
	   designated console.

       Disabling messaging completely is not recommended, because the messages provide useful status and warning information.

OPTIONS

       -show (user|console|all|none)
	   Specifies the types of messages to display. Choose one of the following values:

	   user
	       Send user messages to user screens.

	   console
	       Send console messages to the console.

	   all Send user messages to user screens and console messages to the console (the default if the -show argument is omitted).

	   none
	       Do not send any messages to user screens or the console.

       -help
	   Prints the online help for this command. All other valid options are ignored.

EXAMPLES

       The following command instructs the Cache Manager to display both types of messages:

	  % fs messages -show all

PRIVILEGE REQUIRED

       The issuer must be logged in as the local superuser root.

SEE ALSO

       afsd(8)

COPYRIGHT

       IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.

       This documentation is covered by the IBM Public License Version 1.0.  It was converted from HTML to POD by software written by Chas
       Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.

OpenAFS 							    2012-03-26							    FS_MESSAGES(1)
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