How do I see filesystem status in Linux?
You can use the following commands to see current status of file systems in Linux.
mount command
To display information about mounted file systems, enter:
$ mount | column -t
Sample outputs:
/dev/sda5 on / type ext3 (rw,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) none on /sys type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) none on /dev type devtmpfs (rw,mode=0755) none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) none on /dev/shm type tmpfs (rw,nosuid,nodev) none on /var/run type tmpfs (rw,nosuid,mode=0755) none on /var/lock type tmpfs (rw,noexec,nosuid,nodev) none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755) binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev) gvfs-fuse-daemon on /home/vivek/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=vivek) nas01:/mp3 on /nfs type nfs (rw,addr=192.168.3.1) none on /proc/fs/vmblock/mountPoint type vmblock (rw)
df command
To find out file system disk space usage, enter:
$ df
$ df -H
Sample outputs:
Filesystem Size Used Avail Use% Mounted on /dev/sda5 477G 167G 285G 37% / none 4.2G 402k 4.2G 1% /dev none 4.2G 2.1M 4.2G 1% /dev/shm none 4.2G 312k 4.2G 1% /var/run none 4.2G 0 4.2G 0% /var/lock none 4.2G 0 4.2G 0% /lib/init/rw nas01:/mp3 6.0T 127G 5.8T 3% /nfs
du Command
Use the du command to estimate file space usage, enter:
$ du
$ du /home
$ du -ch /home
List the Partition Tables
Type the fdisk command as follows (must be run as root):
# fdisk -l
# fdisk -l /dev/sda
Sample outputs:
Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xf0000000 Device Boot Start End Blocks Id System /dev/sda1 * 1 1992 15998976 82 Linux swap / Solaris /dev/sda2 1993 60802 472384513 5 Extended /dev/sda5 1993 60802 472384512 83 Linux
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