remove_lisa_files.sh

#!/bin/bash

function GetOSVersion {
    # Figure out which vendor we are
    if [[ -x "`which sw_vers 2>/dev/null`" ]]; then
        # OS/X
        os_VENDOR=`sw_vers -productName`
        os_RELEASE=`sw_vers -productVersion`
        os_UPDATE=${os_RELEASE##*.}
        os_RELEASE=${os_RELEASE%.*}
        os_PACKAGE=""
        if [[ "$os_RELEASE" =~ "10.7" ]]; then
            os_CODENAME="lion"
        elif [[ "$os_RELEASE" =~ "10.6" ]]; then
            os_CODENAME="snow leopard"
        elif [[ "$os_RELEASE" =~ "10.5" ]]; then
            os_CODENAME="leopard"
        elif [[ "$os_RELEASE" =~ "10.4" ]]; then
            os_CODENAME="tiger"
        elif [[ "$os_RELEASE" =~ "10.3" ]]; then
            os_CODENAME="panther"
        else
            os_CODENAME=""
        fi
    elif [[ -x $(which lsb_release 2>/dev/null) ]]; then
        os_VENDOR=$(lsb_release -i -s)
        os_RELEASE=$(lsb_release -r -s | head -c 1)
        os_UPDATE=""
        os_PACKAGE="rpm"
        if [[ "Debian,Ubuntu,LinuxMint" =~ $os_VENDOR ]]; then
            os_PACKAGE="deb"
        elif [[ "SUSE LINUX" =~ $os_VENDOR ]]; then
            lsb_release -d -s | grep -q openSUSE
            if [[ $? -eq 0 ]]; then
                os_VENDOR="openSUSE"
            fi
        elif [[ $os_VENDOR == "openSUSE project" ]]; then
            os_VENDOR="openSUSE"
        elif [[ $os_VENDOR =~ Red.*Hat ]]; then
            os_VENDOR="Red Hat"
        fi
        os_CODENAME=$(lsb_release -c -s)
    elif [[ -r /etc/redhat-release ]]; then
        os_CODENAME=""
        for r in "Red Hat" CentOS Fedora XenServer; do
            os_VENDOR=$r
            if [[ -n "`grep \"$r\" /etc/redhat-release`" ]]; then
                ver=`sed -e 's/^.* \([0-9].*\) (\(.*\)).*$/\1\|\2/' /etc/redhat-release`
                os_CODENAME=${ver#*|}
                os_RELEASE=${ver%|*}
                os_UPDATE=${os_RELEASE##*.}
                os_RELEASE=${os_RELEASE%.*}
                break
            fi
            os_VENDOR=""
        done
        os_PACKAGE="rpm"
    elif [[ -r /etc/SuSE-release ]]; then
        for r in openSUSE "SUSE Linux"; do
            if [[ "$r" = "SUSE Linux" ]]; then
                os_VENDOR="SUSE LINUX"
            else
                os_VENDOR=$r
            fi

            if [[ -n "`grep \"$r\" /etc/SuSE-release`" ]]; then
                os_CODENAME=`grep "CODENAME = " /etc/SuSE-release | sed 's:.* = ::g'`
                os_RELEASE=`grep "VERSION = " /etc/SuSE-release | sed 's:.* = ::g'`
                os_UPDATE=`grep "PATCHLEVEL = " /etc/SuSE-release | sed 's:.* = ::g'`
                break
            fi
            os_VENDOR=""
        done
        os_PACKAGE="rpm"
    
    #
    # If lsb_release is not installed, we should be able to detect Debian OS
    #
    elif [[ -f /etc/debian_version ]] && [[ $(cat /proc/version) =~ "Debian" ]]; then
        os_VENDOR="Debian"
        os_PACKAGE="deb"
        os_CODENAME=$(awk '/VERSION=/' /etc/os-release | sed 's/VERSION=//' | sed -r 's/\"|\(|\)//g' | awk '{print $2}')
        os_RELEASE=$(awk '/VERSION_ID=/' /etc/os-release | sed 's/VERSION_ID=//' | sed 's/\"//g')
    fi
    export os_VENDOR os_RELEASE os_UPDATE os_PACKAGE os_CODENAME
}

function is_rhel {
    if [[ -z "$os_VENDOR" ]]; then
        GetOSVersion
    fi
    [ "$os_VENDOR" = "Fedora" ] || [ "$os_VENDOR" = "Red Hat" ] || \
        [ "$os_VENDOR" = "CentOS" ] || [ "$os_VENDOR" = "OracleServer" ]
}

function is_ubuntu {
    if [[ -z "$os_PACKAGE" ]]; then
        GetOSVersion
    fi
    [ "$os_PACKAGE" = "deb" ]
}

function remove_ssh_keys {
    if [[ -d "/root/.ssh" ]]; then
        rm -Rf "/root/.ssh"
    else 
        echo "Cant find rsa keys folder"
    fi
}

function reconf_ssh_rhel {
    #Restore sshd config to the unmodified version
    yum -y remove openssh-server
    yum -y install openssh-server
	
    systemctl start sshd
    systemctl enable sshd
}

function reconf_ssh_ubuntu {
    #Restore sshd config to the unmodified version
    apt -y purge openssh-server
    apt -y install openssh-server
	
    systemctl start ssh
    systemctl enable ssh
}

function remove_test_scripts {
    pushd /root/ > /dev/null
    for i in $(ls); do
        rm -Rf "$i"
    done
    popd > /dev/null
}

function remove_lisa_req {
    remove_ssh_keys
    remove_test_scripts
    if is_rhel ; then
        reconf_ssh_rhel
    elif is_ubuntu ; then
        reconf_ssh_ubuntu
    fi
}

remove_lisa_req