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Add tiny sample script to display upgrades

This commit is contained in:
Jeremy Gardais 2023-05-10 17:03:54 +02:00
parent f46b64defe
commit 365544d343
Signed by: jegardai
GPG Key ID: E759BAA22501AF32
1 changed files with 84 additions and 0 deletions
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update-motd.d/30-update Executable file
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#!/bin/sh
# .. vim: foldmarker=[[[,]]]:foldmethod=marker
# {{ ansible_managed | comment }}
# Colors definition [[[
BLACK='\033[49;30m'
BLACKB='\033[49;90m'
RED='\033[0;31m'
REDB='\033[1;31m'
GREEN='\033[0;32m'
YELLOW='\033[0;33m'
BLUE='\033[94;49m'
MAGENTA='\033[0;35m'
CYAN='\033[36;49m'
WHITE='\033[0;37m'
BOLD='\033[1m'
RESET='\033[0m'
# ]]]
# Function definition [[[
## process_info() [[[
### Return the state of processes passed in parameters
### process_info $PROCESS_LIST_TO_MONITOR $MESSAGE
process_info() {
PROCESS_LIST="${1}"
MSG="${2}"
for PROCESS in ${PROCESS_LIST}; do
MSG="${MSG}${BLACKB}+ "
PRINTF_PROCESS=$(printf '%-22s' "${PROCESS}")
if (ps ax | grep -v grep | grep -E "${PROCESS}" > /dev/null); then
MSG="${MSG}${WHITE}${PRINTF_PROCESS}${RESET}${BLACKB}= ${GREEN}RUNNING${RESET}"
else
MSG="${MSG}${WHITE}${PRINTF_PROCESS}${RESET}${BLACKB}= ${REDB}NOT RUNNING${RESET}"
fi
done
printf '%b' "${MSG}"
}
## ]]]
## service_info() [[[
### Return the listening socket
### service_info $PORT_LIST_TO_MONITOR $MESSAGE
service_info() {
PORT_LIST="${1}"
MSG="${2}"
for PORT in ${PORT_LIST}; do
MSG="${MSG}\\t${BLACKB}+ "
# If a port listen
if (ss -lutn|grep -m1 -E ":${PORT}" > /dev/null); then
# Example: "tcp/127.0.0.1:25"
#MSG="${MSG}${GREEN}$(ss -lutn|grep -m1 ":${PORT}"|awk '{print $1"/"$5}')${RESET} "
MSG="${MSG}${GREEN}$(ss -lutn|grep -E "${PORT}"|sort|head -n1|awk '{print $1"/"$5}')${RESET} "
else
# Example: "22: NOT LISTENING"
MSG="${MSG}${REDB}${PORT}: NOT LISTENING${RESET} "
fi
done
printf '%b' "${MSG}"
}
## ]]]
# ]]]
#+++++++++++++++++++: Updates Info :+++++++++++++++++++
APT_UPGRADES_NUMBER=$(apt list --upgradable 2>/dev/null | wc --lines)
# If some upgrade are availabe
if [ "${APT_UPGRADES_NUMBER}" -gt 1 ]; then
## Print a header [[[
printf '%b' "${RESET}"
printf "${BLACKB}%33s${RESET}" | tr ' ' -
printf '%b' " ${CYAN}Updates Info${RESET} "
printf "${BLACKB}%33s${RESET}" | tr ' ' -
# ]]]
printf '%b' "\\n${BLACKB}+ ${REDB}${APT_UPGRADES_NUMBER}${RESET} ${WHITE}pending upgrades${RESET}"
printf '%b' "\\n${BLACKB}+ ${WHITE}Run '${YELLOW}apt list --upgradable${WHITE}' to see them.${RESET}"
fi
printf '%b' "${RESET}\\n"