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Top Forums Shell Programming and Scripting how to insert text using variable Post 302069390 by mopimp on Friday 24th of March 2006 07:13:34 PM
Old 03-24-2006
how to insert text using variable

Hi i have a dilemma

I need to write a script that takes two arguments. The first being a line of text, the second being a newly created file. The script should take the first argument and insert it into the very top ( the first line) of the file named in your second argument.

Note! The file must retain the original name

at the moment i have

sed '1i\
ADD THIS LINE' cust

and would like to replace ADD THIS LINE with a variable, that has been sent via an argument ie $1. And ultimately i would like to replace cust with another variable that has been sent via argument ie $2 ....

iam a little bit lost as i have just started unix last week
 

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MAKESH(1)                                                     General Commands Manual                                                    MAKESH(1)

NAME
makeSH - a .SH script maker SYNOPSIS
makeSH files DESCRIPTION
MakeSH examines one or more scripts and produces a .SH file that, when run under sh, will produce the original script. The .SH script so produced has two sections containing code destined for the output. The first section has variable substitutions performed on it (taking values from config.sh), while the second section does not. MakeSH does not know which variables you want to have substituted, so it puts the whole script into the second section. It's up to you to insert any variable substitutions in the first section for any values you want from config.sh. You should run makeSH from within your top-level directory and use the relative path to the file as an argument, so that the "Extracting ..." line printed while running the produced .SH file later on will give that same path. AUTHOR
Larry Wall <lwall@netlabs.com> SEE ALSO
pat(1), metaconfig(1), makedist(1). BUGS
It could assume that variables from metaconfig's Glossary need to be initialized in the first section, but I'm too lazy to make it do that. LOCAL MAKESH(1)
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