Running out of space

Let's create huge files that would consume all the available disk space in /games.

A fast way to create big files in Linux is by using the dd command. To demonstrate, let's first change to the /games directory:

root@ubuntu-linux:~# cd /games 
root@ubuntu-linux:/games#

Now you can run the following command to create a 1 GB file named bigGame:

root@ubuntu-linux:/games# dd if=/dev/zero of=bigGame bs=1G count=1 
1+0 records in
1+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.44297 s, 744 MB/s

We have now already used more than half of the available space in /games:

root@ubuntu-linux:/games# df -h /games 
Filesystem    Size Used Avail Use% Mounted on
/dev/sdb1     2.0G 1.1G 868M  55%  /games

Now let's attempt to create another file named bigFish of size 3 GB:

root@ubuntu-linux:/games# dd if=/dev/zero of=bigFish bs=1G count=3 
dd: error writing 'bigFish': No space left on device
1+0 records in
0+0 records out
1016942592 bytes (1.0 GB, 970 MiB...