20 Gig for OS seems high: How do I clean up Disk?

[Nazaroo]

How can I know what to delete to save disk space?
Is there an automated program that safely deletes things I don't need?

thanks in advance,
Nazaroo

[CharlesA]

I suppose 20GB is a bit high, but it all depends on what you have installed.

You could run this:

sudo apt-get autoclean

To remove old packages from the cache.

Try running this as well:

du / -h --max-depth=1

[Nazaroo]

hmmm ran first one and :

root@unknown:~# sudo apt-get autoclean
E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
I have Synaptic Manager open in another area. Could that be a problem?

[libssd]

Yes, you have a collision with Synaptic; close it, and try again.

Better yet, install Ubuntu Tweak, which provides a fairly intuitive GUI for this and other tasks.

[Nazaroo]

I was installing agedu, but it doesn't show up on the Ubuntu dropdown menu that I can see...

I am installing Tweak, which calls itself a Hex-editor. Sounds like the "monitor" in an Apple IIe. Haven't programmed in HEX since the 80s....

[CharlesA]

hmmm ran first one and :

root@unknown:~# sudo apt-get autoclean
E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
I have Synaptic Manager open in another area. Could that be a problem?

Yup. You can only have one program accessing dpkg at once.

Close out synaptic and run it again.

The du program will provide the same functionality as agedu.

Even Disk Usage Analyzer will provide the same functionality minus the html report.

[Nazaroo]

Okay I ran DU:

root@unknown:~# du / -h --max-depth=1
17M /tmp
4.0K /srv
31M /boot
du: cannot access `/proc/16725/task/16725/fd/3': No such file or directory
du: cannot access `/proc/16725/task/16725/fdinfo/3': No such file or directory
du: cannot access `/proc/16725/fd/3': No such file or directory
du: cannot access `/proc/16725/fdinfo/3': No such file or directory
0 /proc
4.0K /mnt
16K /lost+found
0 /sys
5.7M /bin
1.1M /dev
63M /opt
216M /lib
16M /etc
2.0G /root
^C
root@unknown:~# ^C
root@unknown:~#


I don't know what I am looking at here...


any advice?

[Hobgoblin]

any advice?

Let the command finish (i.e. don't ctrl+C out of it).

The first column is the size, the second is the folder. It is showing where the space is being used, or would if you let it finish.

The output of

df -h

might also be handy.

[CharlesA]

You'll get a few permission denied errors, but that's ok.

If you want a GUI version, check out Disk Usage Analyzer: Applications > Accessories > Disk Usage Analyzer.

[Nazaroo]

Let the command finish (i.e. don't ctrl+C out of it).

The first column is the size, the second is the folder. It is showing where the space is being used, or would if you let it finish.

The output of

df -h

might also be handy.

oh ok. I thought the program was hung.

thank you to everyone for your help.

This time I'm letting it run through longer.

P.S., could there be a bunch of source-code I don't need hanging around somewhere?
Or a game someone may have installed that never got uninstalled?
Where would I look for those? (no big games show up on dropdown menu...)