Check Linux/Unix System Version

Create executable file using this below mentioned script and execute file.

#!/bin/sh

[ -r /etc/lsb-release ] && . /etc/lsb-release

if [ -z "$DISTRIB_DESCRIPTION" ] && [ -x /usr/bin/lsb_release ]; then

# Fall back to using the very slow lsb_release utility

DISTRIB_DESCRIPTION=$(lsb_release -s -d)

fi

printf "Welcome to %s (%s %s %s)\n" "$DISTRIB_DESCRIPTION" "$(uname -o)" "$(uname -r)" "$(uname -m)"

echo ""

cat /etc/redhat-release