Ubuntu-Debian APT upgrade script
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#!/bin/bash | |
# | |
# Brady Shea - 18SEP2020 - conversion of system_update alias to bash script | |
# https://www.holylinux.net/ | |
# | |
# Place this script in "/usr/local/sbin/system_update" or similar location under your $PATH | |
# It needs root permissions (SUDO) to execute. | |
# | |
# Change these settings to your liking: | |
################################# | |
noprompting=true # ( true | false ) (APT option: -y, --yes, --assume-yes) | |
sleepy=5 # Pause a bit between autoremoves and updates | |
bootpartitionwarning=102400 # 102400 1kb blocks (~100MiB) is a reasonable amount | |
################################# | |
# STATIC VARIABLES # | |
BRIGHT_RED=$(tput bold)$(tput setaf 1) | |
BRIGHT_GREEN=$(tput bold)$(tput setaf 2) | |
GREEN=$(tput setaf 2) | |
BRIGHT_YELLOW=$(tput bold)$(tput setaf 3) | |
BRIGHT_WHITE=$(tput bold)$(tput setaf 7) | |
COLOR_OFF=$(tput sgr0) | |
scriptname=`basename "$0"` | |
rebootfileflag=/var/run/reboot-required | |
# OTHER VARIABLES # | |
noprompt= | |
if [[ $noprompting == "true" ]]; then | |
noprompt=-y | |
fi | |
rebootreq=0 | |
bootavail=0 | |
problems=0 | |
# FUNCTIONS # | |
root_user () { [ ${EUID:-$(id -u)} -eq 0 ]; } | |
## No point going any further in script if not sudo: | |
if ! root_user; then printf "\nPlease use: \'sudo ${scriptname}\'\nExiting.\n\n"; exit; fi | |
sleeptimer () { | |
for (( count=1; count<=$sleepy; count++ )); do | |
printf "${BRIGHT_WHITE}.${COLOR_OFF}"; sleep 1; | |
done | |
printf "\n" | |
} | |
rebootcheck () { | |
rebootreq="false" | |
if [ -f $rebootfileflag ]; then | |
rebootreq="true" | |
fi | |
} | |
okaynookay () { | |
showalert="${GREEN}(PASS)${COLOR_OFF}" | |
if [ $problems == "1" ]; then | |
showalert="${BRIGHT_RED}(FAIL)${COLOR_OFF}" | |
fi | |
problems=0 | |
} | |
# MAIN PROGRAM # | |
printf "\n${BRIGHT_YELLOW}SYSTEM UPDATE STARTED${COLOR_OFF}\n\n" | |
printf " ${BRIGHT_WHITE}Current Distribution:${COLOR_OFF} %b %b %b\n" $(lsb_release -sd) | |
bootavail=$(df --output=avail /boot | tail -n 1) | |
if [[ $bootavail -lt bootpartitionwarning ]]; then | |
problems=1; okaynookay | |
displaybootavail="${bootavail} ${showalert}" | |
else | |
problems=0; okaynookay | |
displaybootavail="${bootavail} ${showalert}" | |
fi | |
printf " ${BRIGHT_WHITE}Available /boot space:${COLOR_OFF} %s %s\n" $displaybootavail | |
rebootcheck ## (pre update) | |
if [[ $rebootreq == "true" ]]; then | |
problems=1; okaynookay; | |
displayrebootreq="${rebootreq} ${showalert}" | |
else | |
problems=0; okaynookay; | |
displayrebootreq="${rebootreq} ${showalert}" | |
fi | |
printf " ${BRIGHT_WHITE}Reboot required currently:${COLOR_OFF} %s %s\n" $displayrebootreq | |
if [[ $rebootreq == "true" || $bootavail -lt $bootpartitionwarning ]]; then | |
while true; do | |
read -p " $(echo -e "You have warnings. Proceed anyway? [y/N] ")" userinput | |
case $userinput in | |
[Yy]* ) break;; | |
[Nn]* ) exit;; | |
* ) exit;; | |
esac | |
done | |
fi | |
# START UPDATE # | |
printf "\n${BRIGHT_WHITE}Updating from sources..${COLOR_OFF}\n" | |
apt update | |
printf "\n${BRIGHT_WHITE}Running autoremove before updates..${COLOR_OFF}\n" | |
apt ${noprompt} autoremove | |
printf "\n${BRIGHT_WHITE}Autoremove completed. Sleeping ${sleepy} seconds${COLOR_OFF}"; sleeptimer | |
printf "\n${BRIGHT_WHITE}Installing any upgrades found..${COLOR_OFF}\n" | |
apt ${noprompt} upgrade | |
printf "\n${BRIGHT_WHITE}Updates have completed. Sleeping ${sleepy} seconds${COLOR_OFF}"; sleeptimer | |
printf "\n${BRIGHT_WHITE}Re-running autoremove post-updates..${COLOR_OFF}\n" | |
apt ${noprompt} autoremove | |
rebootcheck ## (post update) | |
if [[ $rebootreq == "true" ]]; then | |
printf "\n${BRIGHT_RED} *** A system reboot is required. ***${COLOR_OFF}\n" | |
else | |
printf "\n${GREEN} A system reboot is NOT required at this time.${COLOR_OFF}\n" | |
fi | |
printf "\n${BRIGHT_YELLOW}SYSTEM UPDATE COMPLETED. Exiting.${COLOR_OFF}\n\n" |
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A 'clean' way to do apt updates on debian/ubuntu/etc.. with autoremove.
I have used something similar to this for years and have never had a problem with updates/upgrades.
Using Script
/usr/local/sbin/system_update
(or similar location under your$PATH
)Permissions:
$ sudo chmod 755 /usr/local/sbin/system_update
Execute:
$ sudo system_update
I have added a sudo check, a reboot check (pre and post update) and a /boot space check as well (Updated 19JUN2021):
Failure(s) will look like this:
A failure is either low
/boot
space, or a reboot is needed (less than 100MiB default - seebootpartitionwarning
in adjustable variables).These should probably be corrected before proceeding. You can of course continue the update, but you were warned.