I have redhat enterprise linux running on my sustem. Till yesterday my / was 36% full suddenly(as it was sunday many have not used the server) I am seeing it as 100% full.
I have /home /usr /var /boot mounted in other partions.
# df -k (on today)
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda3 8063408 8063400 0 100% /
/dev/sda1 99134 14933 79082 16% /boot
/dev/sda7 100703656 24865008 70723156 27% /home
none 1030540 0 1030540 0% /dev/shm
/dev/sda5 7055272 2605900 4090976 39% /usr
/dev/sda2 20158332 725820 18408512 4% /var

my /var was also showing 100 % full. I deleting the mail log and it came back to 4%. Can anyone tell me so that can isee what is needed to deleted from / partion.

#df -k (yesterday)
------------------ Disk Space --------------------

Filesystem Size Used Avail Use% Mounted on
/dev/sda3 7.7G 2.6G 4.8G 36% /
/dev/sda1 97M 15M 78M 16% /boot
/dev/sda7 97G 24G 68G 26% /home
none 1007M 0 1007M 0% /dev/shm
/dev/sda5 6.8G 2.5G 4.0G 39% /usr
/dev/sda2 20G 5.3G 13G 29% /var

Thanking you
Sanjib Gupta

If you run du -sh /* you will see which top level directories are using up the space. If for example, it was /var, you would then type du -sh /var/* and so on until you find out where the files using up the space are located.

Thanks my /tmp shows have all the space
# du -sh /*
5.2M /bin
11M /boot
428K /dev
22M /etc
24G /home
4.0K /initrd
139M /lib
16K /lost+found
4.0K /misc
12K /mnt
244K /opt
du: `/proc/22856/fd/4': No such file or directory
5.0K /proc
62M /root
12M /sbin
7.5G /tmp
2.5G /usr
678M /var
[root@bic httpd]# cd /tmp
[root@bic tmp]# l s-l
-bash: l: command not found
[root@bic tmp]# ls -l
total 24
drwxr-xr-x 3 root root 4096 Oct 19 2005 home
drwx------ 2 root root 4096 Feb 11 07:21 logwatch.XXedsliM
drwx------ 2 root root 8192 Jun 30 2006 orbit-root
drwx------ 2 sanjib sanjib 4096 Oct 26 2005 orbit-sanjib
-rw------- 1 apache apache 0 Feb 12 11:45 sess_bb063d0669617942c60c90f7e13746bc
drwx------ 2 root root 4096 Jun 30 2006 ssh-QJyG4509

DO i remove whole of /tmp directory by rm -rF and then again make the directory.
THe home directory in the /tmp directory has by itself many directories

SAnjib Gupta

I wouldn't just delete the /tmp directory unless you can shut down any system and user processes that are using it. It shouldn't take long to find where the space is being used with du -sh /tmp/*. Could one of your users be building an image to burn to DVD?