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Is there a command to tell what type of filesystem you're using?

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Possible duplicate: unix.stackexchange.com/q/43237/863 (Yes it's newer, but it has a) an accepted answer and b) also works for unmounted filesystems and image files) –  Tobias Kienzler Nov 2 '12 at 6:57
    
It would help for the target operating system(s) to be specified. Most of the answers assume it is Linux but this isn't stated in the question. –  jlliagre Nov 2 '12 at 10:03

8 Answers 8

$ stat -f -c %T /
xfs
$ stat -f -c %T /boot
ext2/ext3
$ stat -f -c %T /srv
btrfs
$ stat -f -c %T /tmp
tmpfs
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2  
If it matters, I believe this is specific to Linux. –  Chris Down Mar 21 '12 at 14:17

If you do:

df -k .

It will tell you what filesystem your current directory is on.

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16  
df . is enough for this. And, if you need to know the filesystem type, df -T . will do. –  Alexios Mar 20 '12 at 22:29
    
To see the partition of some specific file check here. –  Ayush Goyal Mar 21 '12 at 14:08

Your question can be taken several ways. Literally Karlson's answer is pretty cool because it tells you the filesystem of the volume | partition that you are currently on.

df -hT I have always liked this command because it shows you all the "standard" filesystems that are mounted and does it in human-readable size format.

However, you may have other disks or volumes that are not mounted (commented out), failed to mount, or have been unmounted. Another thing you can do is to run cat /etc/fstab this will show you the "filesystem table" and list the filesystems that are supposed to be mounted on boot along with the location, filesystem type, mountpoint, and more.

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You can also use lsblk -f and blkid to get information about your filesystems and their properties.

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df -T . | awk '{ getline ; print $2 }'
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Run df ., which will tell you on what filesystem the current directory resides. Then run mount, which will produce a list of mounted filesystems along with their types and mount options. This works for me:

mount | fgrep -w "`df . | grep '%' | sed -e 's/.*% *//'`"
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Just use blkid -o value -s TYPE "$DEV", it also works for unmounted devices or even image files.

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cat /etc/mtab for mounted filesystems.

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