Check out example codes for "make a command prompt with your own commands html". It will help you in understanding the concepts better.

Code Example 1

#kill-server
#!/bin/bash
   
RED='\e[31m'
NOCOLOR='\033[0m'
GREEN='\e[92m'
   
echo -e "Getting PID's from port :$1..."
PIDINFO=`netstat -ano | findstr :$1`
   
if [ $# -eq 0 ]
  then
    echo -e "${RED}No port number specified"
    echo -e "${NOCOLOR}Usage: kill-server [port-number]"
    exit 1
fi
   
# Convert to array
PIDINFOARR=($PIDINFO)
   
# Get the PID
PID=$(echo "${PIDINFOARR[4]}" | sed '')
# Kill the server
echo -e "Kill server :$1..."
if tskill "${PID}"; then
	echo -e "${GREEN}Server port /:$1 with PID: ${PID} succesfully terminated."
else
	echo -e "${RED}Server port /:$1 not succesfully terminated. It might be because server is not running."
	exit 1
fi

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