UNIX for Dummies Questions & Answers

awk -F, -v cellid="$1" -v paramval="$2" -v oldfile="$3" -v newfile="$4" '$2==cellid{$3=newvalue}1' OFS="," $3 > $4

awk -F, -v cellid="$1" -v paramval="$2" -v oldfile="$3" -v newfile="$4" '$2==cellid{$3=newvalue}1' OFS="," $3 > $4
function displayUsage()
{
                echo "Usage: [--usage]";
}
function displayHelp()
{
                displayUsage
                echo ""
                echo " -v       variable"
                echo " -i       cellid"
}
while getopts "vi:" option
do
        case $option in
                v )
                        echo "-v variable"
                        ;;
                i )     echo "-i cellid"
                        ;;
                u )     displayUsage;;
                h )     displayHelp;;
        esac
done

myscript -i source -o dest -c conv -d debug

myscript -d debug -o dest -i source -c conv

#!/bin/bash

INPUT="default"
FLAG=""

while getopts ':i:f' OPT
do
        case "${OPT}" in
        f)      FLAG=1
                ;;
        i)      INPUT="${OPTARG}"
                ;;
        ?)      echo "Unknown argument"
                exit 1
                ;;
        esac
done

echo "FLAG=${FLAG} INPUT=${INPUT}"

$ ./opt.sh -f -iasdf
FLAG=1 INPUT=asdf
$ ./opt.sh -f -i asdf
FLAG=1 INPUT=asdf
$ ./opt.sh -i asdf -f
FLAG=1 INPUT=asdf
$ ./opt.sh -iasdf -f
FLAG=1 INPUT=asdf
$ ./opt.sh -f
FLAG=1 INPUT=default
$ ./opt.sh -f -q
Unknown argument
$