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Top Forums Shell Programming and Scripting Deleting specific lines in a file Post 302541955 by asanchez on Tuesday 26th of July 2011 09:04:07 AM
Old 07-26-2011
Deleting specific lines in a file

Hello, I have a file like this one:

Code:
03-07-2011 sunz02       [ OK ]          message1
03-07-2011 sunz02       [ OK ]          message2
03-07-2011 sunz02       [ OK ]          message3
01-07-2011 sunz02       [ OK ]          message1
01-07-2011 sunz02       [ OK ]          message2
01-07-2011 sunz02       [ OK ]          message3
28-06-2011 sunz02       [ OK ]          message1
28-06-2011 sunz02       [ OK ]          message2
28-06-2011 sunz02       [ OK ]          message3

And I would like to delete all lines whose date is older than 10 days.

Something like:

Code:
find /path -mtime +10 -print0 | xargs -0 rm

But instead of seraching mtime dates searching the dates in the first column of the file, and instead of rm files, rm lines...
 

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PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME
paps - UTF-8 to PostScript converter using Pango SYNOPSIS
paps [options] files... DESCRIPTION
paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves through the pango ft2 backend. OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. --landscape Landscape output. Default is portrait. --columns=cl Number of columns output. Default is 1. Please notice this option isn't related to the terminal length as in a "80 culums terminal". --font=desc Set the font description. Default is Monospace 12. --rtl Do right to left (RTL) layout. --paper ps Choose paper size. Known paper sizes are legal, letter and A4. Default is A4. Postscript points Each postscript point equals to 1/72 of an inch. 36 points are 1/2 of an inch. --bottom-margin=bm Set bottom margin. Default is 36 postscript points. --top-margin=tm Set top margin. Default is 36 postscript points. --left-margin=lm Set left margin. Default is 36 postscript points. --right-margin=rm Set right margin. Default is 36 postscript points. --gutter-width=gw Set gutter width. Default is 40 postscript points. --help Show summary of options. --header Draw page header for each page. --markup Interpret the text as pango markup. --lpi Set the lines per inch. This determines the line spacing. --cpi Set the characters per inch. This is an alternative method of specifying the font size. --stretch-chars Indicates that characters should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops behaviour. AUTHOR
paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>. This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others). April 17, 2006 PAPS(1)
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