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Top Forums Shell Programming and Scripting Gen random char then sed replacements Post 302572389 by holyearth on Wednesday 9th of November 2011 10:47:58 PM
Old 11-09-2011
Gen random char then sed replacements

Hey guys,

I need to first generate some random characters, which I am already doing perfectly as follows:
Code:
randomize=`cat /dev/urandom | tr -dc "a-z0-9" | fold -w 6 | head -n 1`

This is where I am stuck...I need to sed replace some static values with those random characters, but I need each replacement to have *different* random characters...for example:
Code:
sed -i 's/blah/blah?$randomize/g' /home/test.html

^ Above does not work ... but it would replace all occurrences of "blah" with blah?au2bu and blah?d2g3h and blah?3juh4 ... I don't want them to all be blah?au2bu


Thanks for the help!

Last edited by Franklin52; 11-10-2011 at 03:15 AM.. Reason: Please use code tags, thank you
 

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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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