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Full Discussion: How to use Bash and awk to search in a file?
Top Forums Shell Programming and Scripting How to use Bash and awk to search in a file? Post 302616701 by bashily on Sunday 1st of April 2012 09:18:23 AM
Old 04-01-2012
I should say thanks to you "Scrutinizer" I got some of the code correctly; however, the loop that you were suggesting, wouldn't work with my code. The reason is: I don't know the name of the file which user checks for date. Above that, user can have a different combination of switches! As a result, I am not able to use $# to get the position. I hope it is clear.

And yes I fixed what you gave me here.

---------- Post updated at 09:18 AM ---------- Previous update was at 09:06 AM ----------

Let say I need to check in a text file that I don't know the name within different options in the following code. How do you get the file to search for regular expressions which user has typed in the command line? I am not a professional, I apologize for silly mistakes and bad explanation.
Code:
#!/bin/bash
# Argument = -t test -r server -p password -v
# Argument = -h

function usage()
{
cat << EOF
usage: $0 options

OPTIONS:
   -h      Show this message
   -t      Test type, can be 'test1' or 'test2'
   -r      Server address
   -p      Server root password
   -v      Verbose
EOF
}

theTest=
theServer=
thePassword=
verbose=
while getopts ":hvt:r:p:" x
do
     case $x in
         h)
             usage
             exit 1
             ;;
         t)
             theTest=$OPTARG
             ;;
         r)
             theServer=$OPTARG
             ;;
         p)
             thePassword=$OPTARG
             ;;
         v)
             verbose=1
             ;;
         ?)
             usage
             exit
             ;;
     esac
done

if [[ -z $theTest ]] || [[ -z $theServer ]] || [[ -z $thePassword ]]
then
     usage
     exit 1
fi
if [ "$verbose" != "" ]; then
    echo Here are the options
    echo "the value for -t is $theTest"
    echo "the value for -r is $theServer"
    echo "the value for -p is $thePassword"
fi
echo "the value for -v is $verbose"

 

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LEARN ABOUT V7

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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