How can I clean the system from unnecessary files?

Question

How can I safely clean the system from unnecessary files to free up disk space? I mean unnecessary packages, configs, cache, etc.

Answer 1

Remove packages that were automatically installed to satisfy dependencies for some package and that are no more needed:

sudo apt-get autoremove

Clear out the local repository of retrieved package files:

sudo apt-get clean

Remove all files associated with removed packages (if you don’t have aptitude installed do sudo apt-get install aptitude):

sudo aptitude purge ~c

Remove old kernel versions (thank @waldyrious for this answer):

sudo apt-get purge $( dpkg --list | grep -P -o "linux-(headers|image)-\d\S+" | grep -v $(uname -r | grep -P -o ".+\d") )

Clear the thumbnail cache:

rm -v -f ~/.cache/thumbnails/*/*.png ~/.thumbnails/*/*.png

Answer 2

CCleaner is not directly available for elementary. You can use BleachBit for this purpose.

Install bleachbit from software center.

If you are comfortable with terminal:

sudo apt-get install bleachbit

Answer 3

Linux remove unuseful files automaticly way more than windows. An app like CCleaner for windows will not have much work and it is unuseful I think.

It can still detect a very few mistakes, remove the data of your programs (reset them, useful especially if you have got chrome wich stores about 2 GB on my computer even if I am nearly not using it), and see if you have got the same file 2 times at a different place.

You have a few equivalents including bleachbit (supposed to be the best, haven't tried it), you can also use SystemCleanUpTool, fslint and GTKOrphan.

Answer 4

Use Resetter app from This site https://github.com/gaining/Resetter