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Shell Programming and Scripting

Need explanation for the syntax

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# 1  
Old 03-21-2007
CPU & Memory Need explanation for the syntax
Hi it will be very useful for me if anyone gives step by step explanation for the below code:

USAGE="check -S dbserver [-D dbname] [-U userid]
where
-S dbserver specifies name of database server
-D dbname specifies name of database on database server
-U userid specifies name of user for database"

while getopts ":S:D:U:" OPTION "$@"
do
case $OPTION in
S) SRVR=$OPTARG;;
D) DB="$OPTARG"; USEDB="use $OPTARG";;
U) UID=$OPTARG;;
:) MISSINGOPTARG="$MISSINGOPTARG -$OPTARG";;
?) if [ "$OPTARG" = "?" ]
then
HELP=1
else
UNEXPECTEDOPT="$UNEXPECTEDOPT -$OPTARG";
fi;;
esac
done
Last edited by chandhar; 03-21-2007 at 09:12 AM..
# 2  
Old 03-21-2007
Run this script in verbose mode.
In Korn shell,
Assuming your script is test.ksh, Run this as
Quote:
ksh -vx test.ksh
or Add
Quote:
set -vx
in the script and try
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