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Full Discussion: Replace string in a file w/ a variable value
Top Forums Shell Programming and Scripting Replace string in a file w/ a variable value Post 302265888 by tret on Monday 8th of December 2008 05:19:54 PM
Old 12-08-2008
Found this on another forum in case anyone is interested, seems straight forward enough.

Quote:
The 'sed' utility is what you want. It can search and replace text using regular expressions. You should be able to 'cat' the resin.conf file into sed, do the replacement, and redirect the output back to resin.conf, something like this:

Code:
cat resin.conf | sed -e 's/ABC/XYZ/' > resin.conf
where ABC is a regular expression matching what you want to find, and XYZ is what you want to replace it with. There's a sed micro-primer in the advanced bash guide that may help you figure out how to insert a variable name into a sed expression.
 

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LEARN ABOUT PHP

httppower

httppower(8)							     powerman							      httppower(8)

NAME

       httppower - communicate with HTTP based power distribution units

SYNOPSIS

       httppower [--url URL]

DESCRIPTION

       httppower  is  a  helper program for powerman which enables it to communicate with HTTP based power distribution units.	It is run interac-
       tively by the powerman daemon.

OPTIONS

       -u, --url URL
	      Set the base URL.

INTERACTIVE COMMANDS

       The following commands are accepted at the httppower> prompt:

       auth user:pass
	      Authenticate to the base URL with specified user and password, using ``basic'' HTTP authentication which sends the user and password
	      over the network in plain text.

       seturl URL
	      Set the base URL.  Overrides the command line option.

       get [URL-suffix]
	      Send an HTTP GET to the base URL with the optional URL-suffix appended.

       post [URL-suffix] key=val[&key=val]...
	      Send an HTTP POST to the base URL with the optional URL-suffix appended, and key-value pairs as argument.

FILES

       /usr/sbin/httppower
       /etc/powerman/powerman.conf

ORIGIN

       PowerMan was originally developed by Andrew Uselton on LLNL's Linux clusters.  This software is open source and distributed under the terms
       of the GNU GPL.

SEE ALSO

       powerman(1), powermand(8), httppower(8), plmpower(8), vpcd(8), powerman.conf(5), powerman.dev(5), powerman-devices(7).

       http://sourceforge.net/projects/powerman

powerman-2.3.5							    2009-02-09							      httppower(8)
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