System Commands - Novell LINUX ENTERPRISE SERVER 10 SP2 - INSTALLATION AND ADMINISTRATION Installation Manual

-t filesystem
For hard disks not defined in the file /etc/fstab, the device type must also be
specified. In this case, only root can mount it. If the file system should also be
mounted by other users, enter the option user in the appropriate line in the /etc/
fstab file (separated by commas) and save this change. Further information is
available in the mount(1) man page.
umount [options] mountpoint
This command unmounts a mounted drive from the file system. To prevent data
loss, run this command before taking a removable data medium from its drive.
Normally, only root is allowed to run the commands mount and umount. To
enable other users to run these commands, edit the /etc/fstab file to specify
the option user for the respective drive.

18.3.2 System Commands

The following section lists a few of the most important commands needed for retrieving
system information and controlling processes and the network.
System Information
df [options] [directory]
The df (disk free) command, when used without any options, displays information
about the total disk space, the disk space currently in use, and the free space on all
the mounted drives. If a directory is specified, the information is limited to the
drive on which that directory is located.
-h
-T
372 Installation and Administration
Specify the file system, commonly ext2 for Linux hard disks, msdos for
MS-DOS media, vfat for the Windows file system, and iso9660 for CDs
Shows the number of occupied blocks in gigabytes, megabytes, or kilobytes—in
human-readable format
Type of file system (ext2, nfs, etc.)