prafulbagai

#!/bin/bash

# Script to add a user to Linux system
if [ $(id -u) -eq 0 ]; then
        # If user & pass not provided in command line arguments, then ask.
	if [[ -z "$1"  &&  -z "$2" ]]; then
		read -p "Enter username : " username
		read -s -p "Enter password : " password
	else
		username="$1"

prafulbagai

#!/bin/bash

# file descriptor
# Change 400000 to increase or decrease number of file descriptor

echo "* soft nofile 400000" >> /etc/security/limits.conf
echo "* hard nofile 400000" >> /etc/security/limits.conf

# Changing kernal parameters (modify value if required)