366 lines
7.6 KiB
Bash
Executable File
366 lines
7.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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script_name="$(basename $(realpath $0))"
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working_dir="$(dirname $(realpath $0))"
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conf_file="${working_dir}/conf/${script_name%%.*}.conf"
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LOCK_DIR="/tmp/$(basename $0).$$.LOCK"
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log_file="${LOCK_DIR}/${script_name%%.*}.log"
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# ----------
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# Base Function(s)
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# ----------
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clean_up() {
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# Perform program exit housekeeping
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rm -rf "$LOCK_DIR"
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blank_line
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exit $1
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}
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echononl(){
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if $terminal ; then
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echo X\\c > /tmp/shprompt$$
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if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
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echo -e -n " $*\\c" 1>&2
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else
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echo -e -n " $*" 1>&2
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fi
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rm /tmp/shprompt$$
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fi
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}
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fatal(){
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echo ""
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if $terminal ; then
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echo -e " [ \033[31m\033[1mFatal\033[m ] $*"
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else
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echo -e " [ Fatal ] $*"
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fi
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echo ""
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if $terminal ; then
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echo -e " \033[1mScript terminated\033[m.."
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else
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echo -e " Script terminated.."
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fi
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echo ""
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rm -rf $LOCK_DIR
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exit 1
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}
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error (){
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echo ""
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if $terminal ; then
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echo -e " [ \033[31m\033[1mError\033[m ] $*"
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else
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echo " [ Error ] $*"
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fi
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echo ""
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}
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warn (){
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if $LOGGING || $terminal ; then
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echo ""
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if $terminal ; then
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echo -e " [ \033[33m\033[1mWarn\033[m ] $*"
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else
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echo " [ Warn ] $*"
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fi
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echo ""
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fi
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}
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info (){
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if $LOGGING || $terminal ; then
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echo ""
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if $terminal ; then
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echo -e " [ \033[32m\033[1mInfo\033[m ] $*"
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else
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echo " [ Info ] $*"
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fi
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echo ""
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fi
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}
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ok (){
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if $LOGGING || $terminal ; then
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echo ""
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if $terminal ; then
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echo -e " [ \033[32m\033[1mOk\033[m ] $*"
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else
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echo " [ Ok ] $*"
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fi
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echo ""
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fi
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}
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echo_done() {
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if $terminal ; then
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echo -e "\033[75G[ \033[32mdone\033[m ]"
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fi
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}
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echo_ok() {
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if $terminal ; then
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echo -e "\033[75G[ \033[32mok\033[m ] "
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fi
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}
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echo_failed(){
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if $terminal ; then
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echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
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fi
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}
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echo_skipped() {
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if $terminal ; then
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echo -e "\033[75G[ \033[33m\033[1mskipped\033[m ]"
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fi
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}
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echo_wait(){
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if $terminal ; then
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echo -en "\033[75G[ \033[5m\033[1m...\033[m ]"
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fi
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}
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blank_line() {
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if $terminal ; then
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echo ""
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fi
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}
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detect_os () {
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if $(which lsb_release > /dev/null 2>&1) ; then
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os_dist="$(lsb_release -i | awk '{print tolower($3)}')"
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os_version="$(lsb_release -r | awk '{print tolower($2)}')"
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os_codename="$(lsb_release -c | awk '{print tolower($2)}')"
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if [[ "$os_dist" = "debian" ]]; then
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if $(echo "$os_version" | grep -q '\.') ; then
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os_version=$(echo "$os_version" | cut --delimiter='.' -f1)
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fi
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fi
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elif [[ -e "/etc/os-release" ]]; then
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. /etc/os-release
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os_dist=$ID
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os_version=${VERSION_ID}
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fi
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# remove whitespace from os_dist and os_version
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os_dist="${os_dist// /}"
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os_version="${os_version// /}"
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}
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# ----------
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# - Jobhandling
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# ----------
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# - Run 'clean_up' for signals SIGHUP SIGINT SIGTERM
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# -
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trap clean_up SIGHUP SIGINT SIGTERM
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# - Create lock directory '$LOCK_DIR"
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#
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mkdir "$LOCK_DIR"
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# ----------
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# - Some checks ..
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# ----------
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# - Running in a terminal?
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# -
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if [[ -t 1 ]] ; then
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terminal=true
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else
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terminal=false
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fi
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# - Detedt Os
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# -
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detect_os
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if [[ "${os_dist,,}" != ubuntu ]] ; then
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fatal "Linux Distribution '${os_dist}' is NOT supported (only Ubuntu). Exiting now ..!"
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fi
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# - Give your default values here
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# -
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LOGGING=false
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BATCH_MODE=false
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# ==========
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# - Begin Main Script
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# ==========
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# ----------
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# - Headline
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# ----------
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if $terminal ; then
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echo ""
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echo -e "\033[1m----------\033[m"
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echo -e "\033[32m\033[1mRunning script \033[m\033[1m$script_name\033[32m .. \033[m"
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echo -e "\033[1m----------\033[m"
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fi
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# ----------
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# - Some pre-script tasks ..
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# ----------
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if $terminal ; then
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echo ""
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echo ""
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echo -e " \033[1mDoing some pre-script tasks ..\033[m"
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echo ""
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fi
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echononl "Detecting not fully deinstalled kernel packages (rc).."
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rc_kernel_pakages="$(dpkg -l linux* | grep -E "^rc" | awk '{print$2}')"
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if [[ $? -eq 0 ]] ; then
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echo_ok
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elif [[ -z "$rc_kernel_pakages" ]]; then
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echo_ok
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else
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echo_failed
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fatal "Detecting not fully deinstalled kernel packages failed."
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fi
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blank_line
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echononl "Get actual used kernel version.."
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kernel_version="$(uname -r | grep -o -E "^[[:digit:]]{1}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}\-[[:digit:]]{1,3}")"
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if [[ $? -eq 0 ]] && [[ -n "$kernel_version" ]]; then
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echo_ok
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else
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echo_done
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fi
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echononl "Detecting old not used kernels.."
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if [[ -f "/var/run/reboot-required" ]]; then
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unused_kernel_pakages=""
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warn "Reboot befor removing unused kernels.."
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echo_skipped
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else
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unused_kernel_pakages="$(dpkg -l linux* | grep -E "^ii" | awk '{print$2}' | grep -v "$kernel_version" | grep -E "linux\-(image|modules|headers).*\-[[:digit:]]{1}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}\-[[:digit:]]{1,3}")"
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if [[ $? -eq 0 ]] ; then
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echo_ok
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elif [[ -z "$unused_kernel_pakages" ]]; then
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echo_ok
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else
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echo_failed
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fatal "Detecting old unused kernel packages failed."
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fi
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fi
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if $terminal && ! $BATCH_MODE ; then
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echo ""
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echo ""
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echo -e " \033[32m\033[1mThe following Packages are detected for removing:\033[m"
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echo ""
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echo -e " \033[1mNot fully deinstalled Packages:\033[m"
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if [[ -z "$rc_kernel_pakages" ]]; then
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echo -e " \033[33m- No Packages found -\033[m"
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else
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for _package in $rc_kernel_pakages ; do
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echo -e " ${_package}"
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done
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fi
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echo ""
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echo -e " \033[1mUnused kernel packages:\033[m"
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if [[ -z "$unused_kernel_pakages" ]]; then
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echo -e " \033[33m- No Packages found -\033[m"
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else
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for _package in $unused_kernel_pakages ; do
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echo -e " ${_package}"
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done
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fi
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if [[ -z "$rc_kernel_pakages" ]] && [[ -z "$unused_kernel_pakages" ]] ; then
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info "No package for deletion found."
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clean_up 0
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fi
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if [[ -n "$rc_kernel_pakages" ]]; then
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echo ""
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echononl "Remove not fully deinstalled kernel packages? [\033[1myes/no\033[m]: "
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read OK
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while [[ "${OK,,}" != "yes" ]] && [[ "${OK,,}" != "no" ]] ; do
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echononl "\033[33mWrong entry!\033[m [\033[1myes/no\033[m]: "
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read OK
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done
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[[ "${OK,,}" = "yes" ]] || rc_kernel_pakages=""
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fi
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if [[ -n "$unused_kernel_pakages" ]]; then
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echononl "Remove unsed kernel packages? [\033[1myes/no\033[m]: "
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read OK
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while [[ "${OK,,}" != "yes" ]] && [[ "${OK,,}" != "no" ]] ; do
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echononl "\033[33mWrong entry!\033[m [\033[1myes/no\033[m]: "
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read OK
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done
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[[ "${OK,,}" = "yes" ]] || unused_kernel_pakages=""
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fi
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fi
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blank_line
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echononl "Removing not fully deinstalled kernel packages.."
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if [[ -z "$rc_kernel_pakages" ]] ; then
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echo_skipped
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else
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echo_wait
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apt-get remove --purge -y $rc_kernel_pakages > $log_file 2>&1
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if [[ $? -eq 0 ]] ; then
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echo_ok
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else
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echo_failed
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error "$(cat "$log_file")"
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fatal "Removing not fully deinstalled kernel packages failed."
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fi
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fi
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echononl "Removing unsed kernel packages.."
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if [[ -z "$unused_kernel_pakages" ]] ; then
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echo_skipped
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else
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echo_wait
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apt-get remove --purge -y $unused_kernel_pakages > $log_file 2>&1
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if [[ $? -eq 0 ]] ; then
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echo_ok
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else
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echo_failed
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error "$(cat "$log_file")"
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fatal "Removing unused kernel packages failed."
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fi
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fi
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echononl "Update grub boot manager.."
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update-grub > $log_file 2>&1
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if [[ $? -eq 0 ]] ; then
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echo_ok
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else
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echo_failed
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error "$(cat "$log_file")"
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fi
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blank_line
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clean_up 0
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