Extending /tmp
 

How do I make my /tmp file 400mb? It's currently 200mb.

Well, it all depends on how you have your partitions and filesystem setup. More details get better replies and or responses.

[root@Doc /]# df -k
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/hda3 111882032 3774100 102424576 4% /
/dev/hda1 99043 7914 86015 9% /boot
none 1038004 0 1038004 0% /dev/shm

According to the results you've listed, I will assume you have 3 partitions set up:

/dev/hda1 = /boot
/dev/hda2 = swap
/dev/hda3 = /

The /tmp directory exists under / unless you have specifically assigned it to its own partition, therefore, no action is needed to give it more space. -- J.W.