Bash script to test replacing Machine IDs in Plex's Preferences.xml from a backup Preferences.xml

edit_preferences_xml.sh

#!/usr/bin/env bash
#-------------------------------------------------------------------------
# https://gist.github.com/007revad
# Script verified at https://www.shellcheck.net/
#--------------------------------------------------------------------------
# Note: The echo lines are just for verifying it's doing what it should
#--------------------------------------------------------------------------

path="~/plex_sync_test"
path_bak="~/plex_sync_bak_test"

file_bak=Preferences-bak.xml  # backup file
file_new=Preferences.xml  # file to edit

echo  # debug

# Get backup Preferences.xml file's ID values
echo "Backup File: ${path_bak}/${file_bak}"  # debug
AnonymousMachineIdentifier=$(grep -oP '(?<=\bAnonymousMachineIdentifier=").*?(?=(" |"/>))' "${path_bak}/${file_bak}")
echo "Back_AnonymousMachineIdentifier = $AnonymousMachineIdentifier"  # debug
CertificateUUID=$(grep -oP '(?<=\bCertificateUUID=").*?(?=(" |"/>))' "${path_bak}/${file_bak}")
echo "Back_CertificateUUID            = $CertificateUUID"  # debug
FriendlyName=$(grep -oP '(?<=\bFriendlyName=").*?(?=(" |"/>))' "${path_bak}/${file_bak}")
echo "FriendlyName                    = $FriendlyName"  # debug
LastAutomaticMappedPort=$(grep -oP '(?<=\bLastAutomaticMappedPort=").*?(?=(" |"/>))' "${path_bak}/${file_bak}")
echo "LastAutomaticMappedPort         = $LastAutomaticMappedPort"  # debug
MachineIdentifier=$(grep -oP '(?<=\bMachineIdentifier=").*?(?=(" |"/>))' "${path_bak}/${file_bak}")
echo "Back_MachineIdentifier          = $MachineIdentifier"  # debug
ManualPortMappingPort=$(grep -oP '(?<=\bManualPortMappingPort=").*?(?=(" |"/>))' "${path_bak}/${file_bak}")
echo "ManualPortMappingPort           = $ManualPortMappingPort"  # debug
PlexOnlineToken=$(grep -oP '(?<=\bPlexOnlineToken=").*?(?=(" |"/>))' "${path_bak}/${file_bak}")
echo "PlexOnlineToken                 = $PlexOnlineToken"  # debug
ProcessedMachineIdentifier=$(grep -oP '(?<=\bProcessedMachineIdentifier=").*?(?=(" |"/>))' "${path_bak}/${file_bak}")
echo "Back_ProcessedMachineIdentifier = $ProcessedMachineIdentifier"  # debug

echo  # debug

# Get synced Preferences.xml file's ID values (so we can replace them)
echo "Main File: ${path}/${file_new}"  # debug
Main_AnonymousMachineIdentifier=$(grep -oP '(?<=\bAnonymousMachineIdentifier=").*?(?=(" |"/>))' "${path}/${file_new}")
echo "Main_AnonymousMachineIdentifier = $Main_AnonymousMachineIdentifier"  # debug
Main_CertificateUUID=$(grep -oP '(?<=\bCertificateUUID=").*?(?=(" |"/>))' "${path}/${file_new}")
echo "Main_CertificateUUID            = $Main_CertificateUUID"  # debug
Main_FriendlyName=$(grep -oP '(?<=\bFriendlyName=").*?(?=(" |"/>))' "${path}/${file_new}")
echo "Main_FriendlyName               = $Main_FriendlyName"  # debug
Main_LastAutomaticMappedPort=$(grep -oP '(?<=\bLastAutomaticMappedPort=").*?(?=(" |"/>))' "${path}/${file_new}")
echo "Main_LastAutomaticMappedPort    = $Main_LastAutomaticMappedPort"  # debug
Main_MachineIdentifier=$(grep -oP '(?<=\bMachineIdentifier=").*?(?=(" |"/>))' "${path}/${file_new}")
echo "Main_MachineIdentifier          = $Main_MachineIdentifier"  # debug
Main_ManualPortMappingPort=$(grep -oP '(?<=\bManualPortMappingPort=").*?(?=(" |"/>))' "${path}/${file_new}")
echo "Main_ManualPortMappingPort      = $Main_ManualPortMappingPort"  # debug
Main_PlexOnlineToken=$(grep -oP '(?<=\bPlexOnlineToken=").*?(?=(" |"/>))' "${path}/${file_new}")
echo "Main_PlexOnlineToken            = $Main_PlexOnlineToken"  # debug
Main_ProcessedMachineIdentifier=$(grep -oP '(?<=\bProcessedMachineIdentifier=").*?(?=(" |"/>))' "${path}/${file_new}")
echo "Main_ProcessedMachineIdentifier = $Main_ProcessedMachineIdentifier"  # debug

echo  # debug

# Change synced Preferences.xml ID values to backed up ID values
sed -i "s/ AnonymousMachineIdentifier=\"AnonymousMachineIdentifier=\"${Main_AnonymousMachineIdentifier}/ AnonymousMachineIdentifier=\"${AnonymousMachineIdentifier}/g" "${path}/${file_new}"
sed -i "s/ CertificateUUID=\"${Main_CertificateUUID}/ CertificateUUID=\"${CertificateUUID}/g" "${path}/${file_new}"
sed -i "s/ FriendlyName=\"${Main_FriendlyName}/ FriendlyName=\"${FriendlyName}/g" "${path}/${file_new}"
sed -i "s/ LastAutomaticMappedPort=\"${Main_LastAutomaticMappedPort}/ LastAutomaticMappedPort=\"${LastAutomaticMappedPort}/g" "${path}/${file_new}"
sed -i "s/ MachineIdentifier=\"${Main_MachineIdentifier}/ MachineIdentifier=\"${MachineIdentifier}/g" "${path}/${file_new}"
sed -i "s/ ManualPortMappingPort=\"${Main_ManualPortMappingPort}/ ManualPortMappingPort=\"${ManualPortMappingPort}/g" "${path}/${file_new}"
sed -i "s/ PlexOnlineToken=\"${Main_PlexOnlineToken}/ PlexOnlineToken=\"${PlexOnlineToken}/g" "${path}/${file_new}"
sed -i "s/ ProcessedMachineIdentifier=\"${Main_ProcessedMachineIdentifier}/ ProcessedMachineIdentifier=\"${ProcessedMachineIdentifier}/g" "${path}/${file_new}"

echo  # debug

exit