Is there anything wrong?

Shell Programming and Scripting
1

For one of my script, I want one extra parameter needs to be added to one of the Usage option. Below its given

 
#Check Input parameters are valid
if [ $# != 4 ]; then
function usage() {
        echo
        echo "*******************************************"
        echo "       !!! USAGE PARAMETERS !!!            "
        echo "*******************************************"
        echo
        echo
        echo "  " `basename $0`" <-l|-a> <DATE> <-c|-s> <SERVICE_NAME>   "
        echo
        echo "  <SERVICE_NAME>   = Enter the vaild SERVICE_NAME that exists in 76S DIR.
    <-L | -l>      = Refining from LIVE LOGS.
    <-A | -a>      = Refining from Archive Logs , But date should be provided along with Option A , Date format yyyy-mm-dd
    <-C | -c>      = Client Specific Provider Error Code
    <-S | -s>      = Server Specific Provider Error Code
 if [ $2 == $[aA] ]; then
  function Archive() {
    -a|-A) -a=$DATE $SERVICE_NAME
            REQUIRED_OPT=2
        *)  usage
      }
    }
usage
fi

For Archive Log Option, mandatorily DATE option should be added in the format yyyy-mm-dd. Do this above option does work??

2

if the parameter is a little complex, you may want to take a look "getopts". it can handle many kinds of passed in parameters. e.g. cmd -A --timestamp yyyy-mm-dd

you can get more information by
man getopts
or
google getopts.

3

I tried with getopts , but still failing for some reason. Can someone assist for above query.

---------- Post updated at 12:42 AM ---------- Previous update was at 12:18 AM ----------

How to assign two arguments passed for option [aA] in the usage.

Is there anything that needs to be changed in the below snippet.

liveFilePattern="${HOME}/conf/app.properties.live.txt"
archFilePattern="${HOME}/conf/app.properties.archive.txt"

OPTRG=$1
SERVICE_NAME=$2
DATE=date +%y%m%d
ERROR_LOG_DIR=$HOME/ErrorLog/
OUT_FILE=$ERROR_LOG_DIR/$SERVICE_NAME_${DATE}

#The Log Path for the File Pattern
LOG_DIR="/logs/dev/app/logs/"

#The String Search File

#myString="${HOME}/conf/stringFile.txt"

#Check Input parameters are valid

if [ $# != 2 ]; then
function usage() {
        echo
        echo "*******************************************"
        echo "       !!! USAGE PARAMETERS !!!            "
        echo "*******************************************"
        echo
        echo
        echo "  " `basename $0`" [-l <SERVICE_NAME> | -a <YYYY-MM-DD> <SERVICE_NAME>] -c -s  "
        echo
        echo "  <SERVICE_NAME>   = Enter the vaild SERVICE_NAME that exists in APP DIR.
    <-L | -l>      = Refining from LIVE LOGS.
    <-A | -a>      = Refining from Archive Logs , But date should be provided along with Option A , Date format yyyy-mm-dd
    <-C | -c>      = Client Specific Provider Error Code
    <-S | -s>      = Server Specific Provider Error Code
 
        *)  usage
    }
usage
fi