Help with a rotate log script Post: 302697429

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Top Forums Shell Programming and Scripting Help with a rotate log script Post 302697429 by 244an on Thursday 6th of September 2012 07:47:27 PM

09-06-2012

Registered User

Quote:

Originally Posted by newbie_01

...
BTW, just noted, I actually need to do the re-order/re-numbering before doing the rotate, not after ....

Don't know if you mean that you want help with this, bur here is a suggestion, I kept your syntax (with small adjustments) because I have never used ksh.

Code:

#!/bin/ksh
file_to_rotate=${1}
max=${2}
let curr=1
while [[ ${curr} -lt ${max} ]]; do
  if [[ ! -f ${file_to_rotate}.${curr} ]]; then
    let next=${curr}+1
    while [[ ${next} -le ${max} ]]; do
      if [[ -f ${file_to_rotate}.${next} ]]; then
        mv ${file_to_rotate}.${next} ${file_to_rotate}.${curr}
        let next=${max}+1 # don't know about ksh, if you can use break here instead
      else
        let next=${next}+1
      fi
    done
  fi
  let curr=${curr}+1
done

In your script in your first post I would have preferred mv x y instead of cp -p x y, on both places where you do the copy. For the first occurrence the "file_to_rotate" is not "rotated", it is copied to "file_to_rotate.1" but "file_to_rotate" still remains.
For second occurrence it will be the same result at the end, but if the script for some reason crashes in the middle you will have a confusing copy.

Last edited by 244an; 09-07-2012 at 08:19 AM..

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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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