Shell Programming and Scripting

#!/bin/sh
#set -x
while getopts ":n:" opt; do
    case "$opt" in
        n)
            host=$OPTARG
            shift 2
        ;;
        *)
            break
        ;;
    esac
done

echo "host = $host "

./ser_reloc.sh  -t  perf -n dev-u1

#!/bin/sh
#set -x
while getopts ":n:t:" opt; do
    case "$opt" in
        n)
            host=$OPTARG
        ;;
        t)
            targ=$OPTARG
        ;;
        *)
            break
        ;;
    esac
done

echo "host = $host targ = $targ"

$ ./script.sh -n abc -t def
host = abc targ = def

if ping -w 2 $host >/dev/null 2>&1
then
    echo Host OK
else
    echo Bad Host $host
fi

case "$targ" in
    pref|avail) echo targ OK;;
    *)    echo Bad argument to -t;;
esac