Finding the largest sized directory

One of our servers keeps running out of disk space. To address this, we needed to find out which folders had the largest size.

On ubuntu server 10.04LTS, this is how we found the directories with the greatest size:

du -m /var/log | sort -n -r | head -n 10


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Creating a Latin1 PostgreSQL database in Ubuntu 10.04LTS

I've encountered this problem several times already and I've finally stumbled upon a solution.

The Problem:

We were tasked to move a postgresql database from an centos based server to a new ubuntu based server. The database was in latin1 encoding.

On the new ubuntu based server, creating a database with latin1 encoding results in an error.
Command: createdb -E LATIN1 --template template0 trial
Result:
createdb: database creation failed: ERROR:  encoding LATIN1 does not match locale en_PH.utf8
DETAIL: The chosen LC_CTYPE setting requires encoding UTF8

The Fix:

First we needed to modify /var/lib/locales/supported.d/local and add the line:
en_PH.ISO-8859-1 ISO-8859-1

Next we had to regenerate the locale files with:
sudo dpkg-reconfigure locales

Afterwards we were able to create a latin1 database with:
createdb -E LATIN1 --template template0 --locale en_PH.ISO-8859-1 trial

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