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Is there an alternative command that does the same thing as findmnt -T . -o TARGET |tail -n 1?

Example: If my current working directory is /media/username/HDD/subdir1/subdir2, that command would output /media/username/HDD/.

In Windows, the path to the highest directory of the current drive/partition is \ (also / works in cmd), because Windows does work with drive letters instead of "everything is a file".

Unix works more unified and modular, but how can one find to the mount point of a partition? If there is no shorter solution than findmnt -T . -o TARGET |tail -n 1, it is no problem. I just wanted to know whether there is a different way.

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  • isn't mount will not solve your problem? Commented Jun 8, 2019 at 10:34
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    Possible duplicate of mount info for current directory Commented Jun 8, 2019 at 11:08
  • @roaima No, your edit was correct. Commented Jun 10, 2019 at 14:20

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Looking at man findmnt I see a number of suggestions that seem to do what you want when finding the mount point for a filesystem:

findmnt --first-only --noheadings --output TARGET --target "$PWD" /home

Or with less readability:

findmnt -fno TARGET -T "$PWD" /home
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If you just want to find it for yourself, not for later use in a variable. you won't find a shorter way than df .:

$ df . Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda6 343650580 232263752 93860660 72% /home

That has extra details, of course, so can't be used to just save the device name to a variable directly. However, it's very easy to parse:

$ df . | grep -Po '^/\S+' /dev/sda6 $ df . | awk '/^\//{print $1}' /dev/sda6

But if you really want a single command to print it, then @roaima's findmnt will be the best.

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  • df can be real pain to parse. If you have a sufficiently long device name (LVM) the output can be split across two lines. Commented Jun 9, 2019 at 23:31
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    @roaima ooh, true, I hadn't even thought of LVM names. Still, the device should at least never have whitespace, so on GNU systems, the df . | grep -Po '^/\S+' should work. But yeah, findmt is a safer choice. I just like df . since it's so short and perfectly adequate for human consumption. Commented Jun 9, 2019 at 23:58

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