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Top Forums Shell Programming and Scripting Sum up files whose size Kbytes and Mbytes Post 302406372 by EAGL€ on Monday 22nd of March 2010 05:28:23 PM
Old 03-22-2010
Sum up files whose size Kbytes and Mbytes

Hello Friends,

When i type
Code:
du -sh *.jar | sort -n

under a library directory i get a result similar below output:

Code:
   1M    1.jar
2.4M     2.jar
4.5M     3.jar
     .      .
     .      .
     .      .
    1K   (n-2).jar
  15K    (n-1).jar
77.7K     n.jar

I want to sum up the size of all files in terms of Kbytes or bytes, i wrote this code, but im not sure if this is the optimum way to do it with awkSmilie, i need your modification or comments.

Code:
du -sh *.jar |nawk '{sub("K$","",$1); a+=$1}{sub("M$","",$1); b+=$1*1000}END{printf "%12d\n",s=a+b}'

 

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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. --font=desc Set the font description. Default is Monospace 12. --rtl Do rtl layout. --paper ps Choose paper size. Known paper sizes are legal, letter, a4. Default is A4. --bottom-margin=bm Set bottom margin in postscript points (1/72 inch). Default is 36. --top-margin=tm Set top margin. Default is 36. --left-margin=lm Set left margin. Default is 36. --right-margin=rm Set right margin. Default is 36. --help Show summary of options. --header Draw page header for each page. --markup Interpret the text as pango markup. --encoding=ENCODING Assume the documentation encoding is ENCODING. --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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