Find OS released dist name

find_os_release.sh

#!/bin/bash

# Now it's available for Debian, Ubuntu, RedHat, CentOS and Fedora.

folder_root='/etc/'
dist_name='Unknown OS dist name'
release_paths=$(ls $folder_root 2>/dev/null | grep '\-release')

for release_path in $release_paths;
do
    dist=$(cat ${folder_root}${release_path} | grep 'DISTRIB_DESCRIPTION=')
 
    if [ $? != 1 ]; then
        dist_name=$(echo $dist | sed -e 's/DISTRIB_DESCRIPTION=//g' | sed -e 's/"//g')
        break;
    fi;

    dist=$(cat ${folder_root}${release_path} | grep 'PRETTY_NAME=')

    if [ $? != 1 ]; then
        dist_name=$(echo $dist | sed -e 's/PRETTY_NAME=//g' | sed -e 's/"//g')
        break;
    fi;
done;

echo $dist_name