[SOLVED] Hold Value to a variable inside the linux bash do loop

Issue

I need to define a global variable for further refrence

This is my code

    # .bashrc
    LOCAL_CONF_DIR='/var/www/vhosts/vhost/test.conf'

   cat ${LOCAL_CONF_DIR} | while read LINE
   do
   if [ "ServerName" == "${LINE:0:10}" ]; then
       s=( $LINE )
       SERVER_NAME=$s[1];
   fi
   done
echo $SERVER_NAME

Doesn't work for me RHE Linux 6.0

many thanks ;)

Solution

Your if syntax isn't correct and your loop should not be using cat. Use this code:

SERVER_NAME=""
while read -r LINE
do
   if [ "${LINE:0:10}" = "ServerName" ]; then
       SERVER_NAME="${LINE:10}"
   fi
done < "${LOCAL_CONF_DIR}"

echo "$SERVER_NAME"

Answered By - anubhava