Verifying CMS versions

WordPress version:

Linux/cPanel:

find /home/*/public_html/ -type f -iwholename "*/wp-includes/version.php" -exec grep -H "\$wp_version =" {} \;

 Linux/Plesk:

find /var/www/vhosts/*/httpdocs/ -type f -iwholename "*/wp-includes/version.php" -exec grep -H "\$wp_version =" {} \;

 Windows/IIS (default path) with Powershell:

Get-ChildItem -Path "C:\inetpub\wwwroot\" -Filter "version.php" -Recurse -ea Silentlycontinue | Select-String -pattern "\`$wp_version =" | out-string -stream | select-string includes 

Joomla! 1/2/3 version and release:

 Linux/cPanel:

find /home/*/public_html/ -type f \( -iwholename '*/libraries/joomla/version.php' -o -iwholename '*/libraries/cms/version.php' -o -iwholename '*/libraries/cms/version/version.php' \) -print -exec perl -e 'while (<>) { $release = $1 if m/RELEASE\s+= .([\d.]+).;/; $dev = $1 if m/DEV_LEVEL\s+= .(\d+).;/; } print qq($release.$dev\n);' {} \; && echo "-"

 Linux/Plesk:

find /var/www/vhosts/*/httpdocs/ -type f \( -iwholename '*/libraries/joomla/version.php' -o -iwholename '*/libraries/cms/version.php' -o -iwholename '*/libraries/cms/version/version.php' \) -print -exec perl -e 'while (<>) { $release = $1 if m/RELEASE\s+= .([\d.]+).;/; $dev = $1 if m/DEV_LEVEL\s+= .(\d+).;/; } print qq($release.$dev\n);' {} \; && echo "-"

Drupal version

Linux/cPanel:

find /home/*/public_html/ -type f -iwholename "*/modules/system/system.info" -exec grep -H "version = \"" {} \;

 Linux/Plesk:

find /var/www/vhosts/*/httpdocs/ -type f -iwholename "*/modules/system/system.info" -exec grep -H "version = \"" {} \;

phpBB version:

Linux/cPanel:

   find /home/*/public_html/ -type f -wholename *includes/constants.php -exec grep -H "PHPBB_VERSION" {} \;

Linux/Plesk: 

 find /var/www/vhosts/*/httpdocs/ -type f -wholename *includes/constants.php -exec grep -H "PHPBB_VERSION" {} \;