Linux Distro Checker

distro_checker.sh

#!/bin/bash

# Log and data files
LOG_FILE="distro_checker.log"
DATA_FILE="distro_versions.txt"

# Source the external distro configuration file
source "./distro_checker_config.sh"

# Function to fetch and extract version information
fetch_version() {
  local url=$1
  local opts=$2
  local regex=$3

  echo "Executing: curl $opts -s \"$url\"" >> "$LOG_FILE"
  curl $opts -s "$url" | grep -oP -m1 "$regex"
}

# Load previous versions into an associative array
declare -A previous_versions
if [[ -f "$DATA_FILE" ]]; then
  while IFS='|' read -r distro prev_version curr_version; do
    previous_versions[$distro]="$curr_version"
  done < <(tail -n +2 "$DATA_FILE")
fi

# Fetch and store current versions
declare -A current_versions
echo "Fetching version info..."
echo

for distro in $(printf "%s\n" "${!distros[@]}" | sort); do
  eval "${distros[$distro]}"
  version=$(fetch_version "$url" "$opts" "$regex")

  if [[ -n $version ]]; then
    current_versions[$distro]="$version"
  else
    current_versions[$distro]="N/A"
  fi
done

# Save results to file with timestamp
echo "Distro Name|Previous Version|Current Version" > "$DATA_FILE"
for distro in $(printf "%s\n" "${!distros[@]}" | sort); do
  prev_version="${previous_versions[$distro]}"
  curr_version="${current_versions[$distro]}"
  echo "$distro|${prev_version:- }|$curr_version" >> "$DATA_FILE"
done

echo "Last Checked: $(date)" >> "$DATA_FILE"

# Display results in table format
echo "---------------------------+------------------------+------------------------"
echo "        Distro Name        |    Previous Version    |     Current Version    "
echo "---------------------------+------------------------+------------------------"
while IFS='|' read -r distro prev_version curr_version; do
  printf "%-26s | %-22s | %s\n" "$distro" "${prev_version:- }" "$curr_version"
done < <(tail -n +2 "$DATA_FILE" | head -n -1)

echo
cat "$DATA_FILE" | tail -n 1

distro_checker_config.sh

# Define an associative array with distro configurations
declare -A distros

# Define your distros and regex scraping details here

# Arch

distros["ArchLinux"]=$(cat <<EOF
url="https://archlinux.org/download/"
opts="--compressed"
regex="(?<=<strong>Current Release:</strong> ).*?(?=</li>)"
EOF
)

distros["CachyOS"]=$(cat <<EOF
url="https://cachyos.org/download/"
opts="--compressed"
regex="(?<=https://cdn77.cachyos.org/ISO/desktop/).*?(?=/cachyos-desktop-linux-)"
EOF
)

distros["EndeavourOS"]=$(cat <<EOF
url="https://endeavouros.com/"
opts="--compressed"
regex="(?<=<a href=\"https://mirrors.gigenet.com/endeavouros/iso/EndeavourOS_Endeavour_neo-).*?(?=.iso\">Download</a>)"
EOF
)

distros["Garuda"]=$(cat <<EOF
url="https://iso.builds.garudalinux.org/iso/latest/garuda/dr460nized/latest.iso?r2=1"
opts="--head"
regex="(?<=location: https://iso.builds.garudalinux.org/iso/garuda/dr460nized/).*?(?=/garuda-dr460nized-linux-zen-)"
EOF
)

distros["Manjaro"]=$(cat <<EOF
url="https://manjaro.org/products/download/x86"
opts="-L"
regex="(?<=<a href=\"https://download.manjaro.org/kde/).*?(?=/manjaro-kde-)"
EOF
)

# Debian

distros["Debian"]=$(cat <<EOF
url='https://www.debian.org/CD/http-ftp/#stable'
opts='--compressed'
regex='(?<=the current release of the "stable" USB/CD/DVD images is <strong>).*?(?=</strong>)'
EOF
)

distros["CommodoreOS"]=$(cat <<EOF
url='https://www.commodoreos.net/CommodoreOS.aspx'
opts='--compressed'
regex='(?<=<a href="Downloads/CommodoreOS-).*?(?=.torrent")'
EOF
)

distros["elementaryOS"]=$(cat <<EOF
url='https://elementary.io/'
opts='--compressed'
regex='(?<=/elementaryos-).*?(?=.iso">Download</a>)'
EOF
)

distros["Kali"]=$(cat <<EOF
url='https://www.kali.org/get-kali/#kali-installer-images'
opts='--compressed'
regex='(?<=<a href=https://cdimage.kali.org/kali-).*?(?=/kali-linux-)'
EOF
)

distros["LinuxMint"]=$(cat <<EOF
url='https://linuxmint.com/edition.php?id=316'
opts='--compressed'
regex='(?<=<a href="https://mirror.csclub.uwaterloo.ca/linuxmint/stable/).*?(?=/linuxmint-)'
EOF
)

distros["MXLinux"]=$(cat <<EOF
url='https://mxlinux.org/download-links/'
opts='--compressed'
regex='(?<=Current Release: MX-).*?(?=</h2>)'
EOF
)

distros["ParrotSecurity"]=$(cat <<EOF
url='https://parrotsec.org'
opts='--compressed'
regex='(?<=href="/download/">Download ParrotOS ).*?(?=</a>)'
EOF
)

distros["Pop!_OS"]=$(cat <<EOF
url='https://github.com/orgs/pop-os/projects/21'
opts='--compressed'
regex='(?<=<title>Pop!_OS ).*?(?= · GitHub</title>)'
EOF
)

distros["OSGeoLive"]=$(cat <<EOF
url='https://live.osgeo.org/en/download.html'
opts='--compressed'
regex='(?<=<p>The latest stable release is OSGeoLive ).*?(?= and can be downloaded from:</p>)'
EOF
)

distros["Q4OS"]=$(cat <<EOF
url='https://q4os.org/downloads1.html'
opts='--compressed'
regex='(?<=q4os-).*?(?=-x64.r1.iso<br />)'
EOF
)

distros["Tails"]=$(cat <<EOF
url='https://tails.net/install/download/index.en.html'
opts='--compressed'
regex='(?<=https://download.tails.net/tails/stable/tails-amd64-).*?(?=/tails-amd64-)'
EOF
)

distros["UbuntuLTS"]=$(cat <<EOF
url='https://ubuntu.com/download/desktop'
opts='--compressed'
regex='(?<=href="/download/desktop/thank-you\?version=).*?(?=&architecture=amd64&lts=true")'
EOF
)

distros["Ubuntu"]=$(cat <<EOF
url='https://ubuntu.com/download/desktop'
opts='--compressed'
regex='(?<=href="/download/desktop/thank-you\?version=).*?(?=&architecture=amd64")'
EOF
)

distros["UbuntuStudioLTS"]=$(cat <<EOF
url='https://ubuntustudio.org/download/'
opts='--compressed'
regex='(?<=<h2>Ubuntu Studio )\d+\.\d+(?:\.\d+)?(?= LTS</h2>)'
EOF
)

distros["UbuntuStudio"]=$(cat <<EOF
url='https://ubuntustudio.org/download/'
opts='--compressed'
regex='(?<=<h2>Ubuntu Studio )\d+\.\d+(?:\.\d+)?(?=</h2>)'
EOF
)

distros["Wubuntu"]=$(cat <<EOF
url='https://wubuntu.org/download/'
opts='--compressed'
regex='(?<=<strong>Wubuntu ).*?(?= LTS)'
EOF
)

# Fedora

distros["Fedora"]=$(cat <<EOF
url='https://fedoraproject.org/workstation/download'
opts='-L'
regex='(?<=<a href="https://download.fedoraproject.org/pub/fedora/linux/releases/).*?(?=/Workstation/x86_64/iso/)'
EOF
)

distros["AlmaLinux"]=$(cat <<EOF
url='https://almalinux.org/get-almalinux/'
opts='--compressed'
regex='(?<=<a href=https://repo.almalinux.org/almalinux/).*?(?=/isos/x86_64/AlmaLinux-.*-x86_64-dvd.iso>)'
EOF
)

distros["Qubes"]=$(cat <<EOF
url='https://www.qubes-os.org/downloads/'
opts='--compressed'
regex='(?<=">Qubes OS ).*?(?=</h3>)'
EOF
)

# Other

distros["Alpine"]=$(cat <<EOF
url='https://www.alpinelinux.org/downloads/'
opts='--compressed'
regex='(?<=<p>Current Alpine Version <strong>).*?(?=</strong>)'
EOF
)

distros["RaspberryPiOS"]=$(cat <<EOF
url='https://downloads.raspberrypi.com/raspios_arm64/release_notes.txt'
opts='--compressed'
regex='^\d{4}-\d{2}-\d{2}(?=:)'
EOF
)