Script to run deeper maintenance

I have long been a fan of Onyx, though prefer to be a bit more DIY with system cleaning and optimising. So I wrote a Bash script that I am trying to improve for Sierra / High Sierra. Currently I manually clear user and system caches, and reset my profile Firefox once a week - that has a major impact on making my mac more boxfresh.

Any hints of additional commands, better scripting and places to clean would be awesome...?

#!/bin/bash

# rebuild XPC caches

sudo /usr/libexec/xpchelper --rebuild-cache

# rebuild CoreDuet

sudo rm -fr /var/db/coreduet/*

# rebuild Launch Services

sudo /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchS ervices.framework/Versions/A/Support/lsregister -kill -r -seed -domain local -domain system -domain user

# Flush DNS cache and restart mdns

sudo dscacheutil -flushcache && sudo killall -HUP mDNSResponder

# clear BootCache

sudo rm -f /private/var/db/BootCache.playlist

# update Dyld cache

sudo update_dyld_shared_cache -root / -force

# rebuild Kernel extension caches

sudo touch /System/Library/Extensions && sudo kextcache -u /

# run system scripts

sudo periodic daily weekly monthly

The version I use also has echo statements and &> pipes to /dev/null

Thanks!!