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Full Discussion: Script for deleting files and directories when the file system reaches the threshold
Top Forums Shell Programming and Scripting Script for deleting files and directories when the file system reaches the threshold Post 302590599 by mirni on Tuesday 17th of January 2012 02:06:22 AM
Old 01-17-2012
Quote:
Originally Posted by newtoaixos
Hi Jayan Jay
The command you have given works fine.
Actually, jayan's one liner may not work correctly on some systems -- it may clear the directory tree even if the use is low. With GNU df, the header contains '%' sign and so you have two lines there:
Code:
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda7              32G   24G  5.8G  81% /sybase

Awk in jayan's command will process both of these lines. Regardless of the use% in the second line (the actual record), the first line will always be matched. That's because the fifth field of the first line, stripped of the '%', will satisfy the if condition:
Code:
"Use" > 94

is always true in awk's language. That is because the integer 94 is automatically converted to a string, and then compared to "Use".

As for my code, it seems that the variable 'use' is empty. Try to echo 'use' variable before the if statement. What does this print?
Code:
df | grep /sybase

Last edited by mirni; 01-17-2012 at 09:27 AM.. Reason: removed offensive word "bug"
 

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LEARN ABOUT DEBIAN

paps

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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