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#!/bin/bash
# LinuxGSM info_distro.sh module
# Author: Daniel Gibbs
# Contributors: https://linuxgsm.com/contrib
# Website: https://linuxgsm.com
# Description: Variables providing useful info on the Operating System such as disk and performace info.
# Used for command_details.sh, command_debug.sh and alert.sh.
# !Note: When adding variables to this script, ensure that they are also added to the command_dev_parse_distro_details.sh script.
moduleselfname="$(basename "$(readlink -f "${BASH_SOURCE[0]}")")"
### Game Server pid
if [ "${status}" == "1" ]; then
gameserverpid="$(tmux -L "${socketname}" list-sessions -F "#{session_name} #{pane_pid}" | grep "^${sessionname} " | awk '{print $NF}')"
if [ "${engine}" == "source" ]; then
srcdslinuxpid="$(ps -ef | grep -v grep | grep "${gameserverpid}" | grep srcds_linux | awk '{print $2}')"
elif [ "${engine}" == "goldsrc" ]; then
hldslinuxpid="$(ps -ef | grep -v grep | grep "${gameserverpid}" | grep hlds_linux | awk '{print $2}')"
fi
fi
### Distro information
## Distro
# Returns architecture, kernel and distro/os.
arch="$(uname -m)" # Architecture e.g. x86_64
kernel="$(uname -r)" # Kernel e.g. 2.6.32-042stab120.16
# Gathers distro info from various sources filling in missing gaps.
distro_info_array=(os-release lsb_release hostnamectl debian_version redhat-release)
for distro_info in "${distro_info_array[@]}"; do
if [ -f "/etc/os-release" ] && [ "${distro_info}" == "os-release" ]; then
distroname="$(grep "PRETTY_NAME" /etc/os-release | awk -F= '{gsub(/"/,"",$2);print $2}')" # e.g. Ubuntu 22.04.3 LTS
distroversion="$(grep "VERSION_ID" /etc/os-release | awk -F= '{gsub(/"/,"",$2);print $2}')" # e.g. 22.04
distroid="$(grep "ID=" /etc/os-release | grep -v _ID | awk -F= '{gsub(/"/,"",$2);print $2}')" # e.g. ubuntu
distroidlike="$(grep "ID_LIKE=" /etc/os-release | grep -v _ID | awk -F= '{gsub(/"/,"",$2);print $2}')" # e.g. debian
distrocodename="$(grep "VERSION_CODENAME" /etc/os-release | awk -F= '{gsub(/"/,"",$2);print $2}')" # e.g. jammy
# Special var for rhel like distros to remove point in number e.g 8.4 to just 8.
if [[ "${distroidlike}" == *"rhel"* ]] || [ "${distroid}" == "rhel" ]; then
distroversionrh="$(sed -nr 's/^VERSION_ID="([0-9]*).+?"/\1/p' /etc/os-release)" # e.g. 8
fi
elif [ "$(command -v lsb_release 2> /dev/null)" ] && [ "${distro_info}" == "lsb_release" ]; then
if [ -z "${distroname}" ]; then
distroname="$(lsb_release -sd)" # e.g. Ubuntu 22.04.3 LTS
elif [ -z "${distroversion}" ]; then
distroversion="$(lsb_release -sr)" # e.g. 22.04
elif [ -z "${distroid}" ]; then
distroid="$(lsb_release -si)" # e.g. Ubuntu
elif [ -z "${distrocodename}" ]; then
distrocodename="$(lsb_release -sc)" # e.g. jammy
fi
elif [ "$(command -v hostnamectl 2> /dev/null)" ] && [ "${distro_info}" == "hostnamectl" ]; then
if [ -z "${distroname}" ]; then
distroname="$(hostnamectl | grep "Operating System" | sed 's/Operating System: //g')" # e.g. Ubuntu 22.04.3 LTS
fi
elif [ -f "/etc/debian_version" ] && [ "${distro_info}" == "debian_version" ]; then
if [ -z "${distroname}" ]; then
distroname="Debian $(cat /etc/debian_version)" # e.g. Debian bookworm/sid
elif [ -z "${distroversion}" ]; then
distroversion="$(cat /etc/debian_version)" # e.g. bookworm/sid
elif [ -z "${distroid}" ]; then
distroid="debian"
fi
elif [ -f "/etc/redhat-release" ] && [ "${distro_info}" == "redhat-release" ]; then
if [ -z "${distroname}" ]; then
distroname="$(cat /etc/redhat-release)" # e.g. Rocky Linux release 9.2 (Blue Onyx)
elif [ -z "${distroversion}" ]; then
distroversion="$(rpm -qa \*-release | grep -Ei "oracle|redhat|centos|fedora|rocky|alma" | cut -d"-" -f3)" # e.g. 9.2
elif [ -z "${distroid}" ]; then
distroid="$(awk '{print $1}' /etc/redhat-release)" # e.g. Rocky
fi
fi
done
# Get virtual environment type.
if [ "$(command -v systemd-detect-virt 2> /dev/null)" ]; then
virtualenvironment="$(systemd-detect-virt)" # e.g. kvm
fi
# distroversioncsv is used for selecting the correct distro csv in data directory
if [ -n "${distroversionrh}" ]; then
distroversioncsv="${distroversionrh}" # e.g. 8
else
distroversioncsv="${distroversion}" # e.g. 22.04
fi
# Check if distro supported by distro vendor.
# distro-info available in debian based distros.
if [ "$(command -v distro-info 2> /dev/null)" ]; then
distrosunsupported="$(distro-info --unsupported)"
distrosunsupported_array=("${distrosunsupported}")
for distrounsupported in "${distrosunsupported_array[@]}"; do
if [ "${distrounsupported}" == "${distrocodename}" ]; then
distrosupport="unsupported"
break
else
distrosupport="supported"
fi
done
elif [[ "${distroidlike}" == *"rhel"* ]] || [ "${distroid}" == "rhel" ]; then
# RHEL/CentOS 7 EOL 2024-06-30. Will be unsupported after this date.
if [ "${distroversionrh}" -lt "8" ] && [ "$(date +%s)" -lt "1719705600" ]; then
distrosupport="unsupported"
else
distrosupport="supported"
fi
fi
## Glibc version
glibcversion="$(ldd --version | sed -n '1s/.* //p')" # e.g: 2.17
## tmux version
if [ "$(command -V tmux 2> /dev/null)" ]; then
tmuxversion="$(tmux -V | awk '{print $2}')" # e.g: tmux 3.3
fi
if [ "$(command -V java 2> /dev/null)" ]; then
javaversion="$(java -version 2>&1 | grep "version")" # e.g: openjdk version "17.0.8.1" 2023-08-24
fi
if [ "$(command -v mono 2> /dev/null)" ]; then
monoversion="$(mono --version 2>&1 | grep -Po '(?<=version )\d')" # e.g: 6
fi
if [ "$(command -v dotnet 2> /dev/null)" ]; then
dotnetversion="$(dotnet --list-runtimes | grep -E 'Microsoft\.NETCore\.App' | awk '{print $2}')" # e.g: 6.0.0
fi
## Uptime
uptime="$(< /proc/uptime)"
uptime=${uptime/[. ]*/}
minutes="$((uptime / 60 % 60))"
hours="$((uptime / 60 / 60 % 24))"
days="$((uptime / 60 / 60 / 24))"
### Performance information
## Average server load
load="$(uptime | awk -F 'load average: ' '{ print $2 }')" # e.g 0.01, 0.05, 0.11
## CPU information
cpumodel="$(awk -F: '/model name/ {name=$2} END {print name}' /proc/cpuinfo | sed 's/^[ \t]*//;s/[ \t]*$//')" # e.g Intel(R) Xeon(R) CPU E5-2676 v3 @ 2.40GHz
cpucores="$(awk -F: '/model name/ {core++} END {print core}' /proc/cpuinfo)"
cpufreqency="$(awk -F: '/cpu MHz/ {freq=$2} END {print freq}' /proc/cpuinfo | sed 's/^[ \t]*//;s/[ \t]*$//')" # e.g 2394.503
# CPU usage of the game server pid
if [ -n "${gameserverpid}" ]; then
cpuused="$(ps --forest -o pcpu -g "${gameserverpid}" | awk '{s+=$1} END {print s}')" # integer
cpuusedmhz="$(echo "${cpufreqency} * ${cpuused} / 100" | bc)" # integer
fi
## Memory information
# Available RAM and swap.
# Newer distros can use numfmt to give more accurate results.
if [ "$(command -v numfmt 2> /dev/null)" ]; then
# Issue #2005 - Kernel 3.14+ contains MemAvailable which should be used. All others will be calculated.
# get the raw KB values of these fields.
physmemtotalkb="$(grep MemTotal /proc/meminfo | awk '{print $2}')" # integer
physmemfreekb="$(grep ^MemFree /proc/meminfo | awk '{print $2}')" # integer
physmembufferskb="$(grep ^Buffers /proc/meminfo | awk '{print $2}')" # integer
physmemcachedkb="$(grep ^Cached /proc/meminfo | awk '{print $2}')" # integer
physmemreclaimablekb="$(grep ^SReclaimable /proc/meminfo | awk '{print $2}')" # integer
# check if MemAvailable Exists.
if grep -q ^MemAvailable /proc/meminfo; then
physmemactualfreekb="$(grep ^MemAvailable /proc/meminfo | awk '{print $2}')" # integer
else
physmemactualfreekb="$((physmemfreekb + physmembufferskb + physmemcachedkb))" # integer
fi
# Available RAM and swap.
physmemtotalmb="$(((physmemtotalkb + 512) / 1024))" # integer # integer
physmemtotalgb="$(((physmemtotalmb + 512) / 1024))" # integer # integer
physmemtotal="$(numfmt --to=iec --from=iec --suffix=B "${physmemtotalkb}K")" # string
physmemfree="$(numfmt --to=iec --from=iec --suffix=B "${physmemactualfreekb}K")" # string
physmemused="$(numfmt --to=iec --from=iec --suffix=B "$((physmemtotalkb - physmemfreekb - physmembufferskb - physmemcachedkb - physmemreclaimablekb))K")" # string
physmemavailable="$(numfmt --to=iec --from=iec --suffix=B "${physmemactualfreekb}K")" # string
physmemcached="$(numfmt --to=iec --from=iec --suffix=B "$((physmemcachedkb + physmemreclaimablekb))K")" # string
swaptotal="$(numfmt --to=iec --from=iec --suffix=B "$(grep ^SwapTotal /proc/meminfo | awk '{print $2}')K")" # string
swapfree="$(numfmt --to=iec --from=iec --suffix=B "$(grep ^SwapFree /proc/meminfo | awk '{print $2}')K")" # string
swapused="$(numfmt --to=iec --from=iec --suffix=B "$(($(grep ^SwapTotal /proc/meminfo | awk '{print $2}') - $(grep ^SwapFree /proc/meminfo | awk '{print $2}')))K")" # string
# RAM usage of the game server pid
if [ "${gameserverpid}" ]; then
memusedmb="$(ps --forest -o rss -g "${gameserverpid}" | awk '{s+=$1} END {print s}' | awk '{$1/=1024;printf "%.0f",$1}{print $2}')" # integer
memusedpct="$(ps --forest -o %mem -g "${gameserverpid}" | awk '{s+=$1} END {print s}')" # integer
fi
else
# Older distros will need to use free.
# Older versions of free do not support -h option.
if free -h > /dev/null 2>&1; then
humanreadable="-h"
else
humanreadable="-m"
fi
physmemtotalmb="$(free -m | awk '/Mem:/ {print $2}')" # integer
physmemtotalgb="$(free -m | awk '/Mem:/ {print $2}')" # integer
physmemtotal="$(free ${humanreadable} | awk '/Mem:/ {print $2}')" # string
physmemfree="$(free ${humanreadable} | awk '/Mem:/ {print $4}')" # string
physmemused="$(free ${humanreadable} | awk '/Mem:/ {print $3}')" # string
oldfree="$(free ${humanreadable} | awk '/cache:/')"
if [ "${oldfree}" ]; then
physmemavailable="n/a" # string
physmemcached="n/a" # string
else
physmemavailable="$(free ${humanreadable} | awk '/Mem:/ {print $7}')" # string
physmemcached="$(free ${humanreadable} | awk '/Mem:/ {print $6}')" # string
fi
swaptotal="$(free ${humanreadable} | awk '/Swap:/ {print $2}')" # string
swapused="$(free ${humanreadable} | awk '/Swap:/ {print $3}')" # string
swapfree="$(free ${humanreadable} | awk '/Swap:/ {print $4}')" # string
fi
### Disk information
## Available disk space on the partition.
filesystem="$(LC_ALL=C df -hP "${rootdir}" | tail -n 1 | awk '{print $1}')" # string e.g /dev/sda
totalspace="$(LC_ALL=C df -hP "${rootdir}" | tail -n 1 | awk '{print $2}')" # string e.g 20G
usedspace="$(LC_ALL=C df -hP "${rootdir}" | tail -n 1 | awk '{print $3}')" # string e.g 15G
availspace="$(LC_ALL=C df -hP "${rootdir}" | tail -n 1 | awk '{print $4}')" # string e.g 5G
## LinuxGSM used space total.
rootdirdu="$(du -sh "${rootdir}" 2> /dev/null | awk '{print $1}')"
if [ -z "${rootdirdu}" ]; then
rootdirdu="0M"
fi
## LinuxGSM used space in serverfiles dir.
serverfilesdu="$(du -sh "${serverfiles}" 2> /dev/null | awk '{print $1}')"
if [ -z "${serverfilesdu}" ]; then
serverfilesdu="0M"
fi
## LinuxGSM used space total minus backup dir.
rootdirduexbackup="$(du -sh --exclude="${backupdir}" "${serverfiles}" 2> /dev/null | awk '{print $1}')"
if [ -z "${rootdirduexbackup}" ]; then
rootdirduexbackup="0M"
fi
## Backup info
if [ -d "${backupdir}" ]; then
# Used space in backups dir.
backupdirdu="$(du -sh "${backupdir}" | awk '{print $1}')"
# If no backup dir, size is 0M.
if [ -z "${backupdirdu}" ]; then
backupdirdu="0M"
fi
# number of backups set to 0 by default.
backupcount=0
# If there are backups in backup dir.
if [ "$(find "${backupdir}" -name "*.tar.gz" | wc -l)" -ne "0" ]; then
# number of backups.
backupcount="$(find "${backupdir}"/*.tar.gz | wc -l)" # integer
# most recent backup.
lastbackup="$(ls -1t "${backupdir}"/*.tar.gz | head -1)" # string
# date of most recent backup.
lastbackupdate="$(date -r "${lastbackup}")" # string
# no of days since last backup.
lastbackupdaysago="$((($(date +'%s') - $(date -r "${lastbackup}" +'%s')) / 60 / 60 / 24))" # integer
# size of most recent backup.
lastbackupsize="$(du -h "${lastbackup}" | awk '{print $1}')" # string
fi
fi
# Network Interface name
netint=$(${ipcommand} -o addr | grep "${ip}" | awk '{print $2}') # e.g eth0
netlink=$(${ethtoolcommand} "${netint}" 2> /dev/null | grep Speed | awk '{print $2}') # e.g 1000Mb/s
# Sets the SteamCMD glibc requirement if the game server requirement is less or not required.
if [ "${appid}" ]; then
if [ "${glibc}" = "null" ] || [ -z "${glibc}" ] || [ "$(printf '%s\n'${glibc}'\n' "2.14" | sort -V | head -n 1)" != "2.14" ]; then
glibc="2.14"
fi
fi
# Gather Port Info using ss.
ssinfo="$(ss -tuplwn)"