On Tue, Sep 27, 2016 at 12:25:32AM +0200, Andreas Fenkart wrote:
> Hi,
>
> Parsing /etc/fstab or /proc/mount with sed/awk is awful and platform
> dependent. Would it be acceptable to add a wrapper for getmntent to
> parse those files and make the content available to shell scripts?
>
> Typical use is to check if a given device is already mounted and
> returning its mountpoint. In case a device is mounted twice or more,
> several mountpoints will be listed
>
> $ getmntent -f /proc/mounts /dev/sda4
> /mnt/
> /home/user/bind
>
> Playing around with mount parsing the output with awk seems to work
> pretty well. It avoids to handle the whitespace separately.
>
> $ mount -l | awk '/\/dev\/sda4/ { print $3; }'
>
> negative:
> - I can't use the a different filesystem description file (small minus)
> - Is the output from 'mount' stable?
>
> Is it worth to add a utility wrapper for getmntent to util-linux?
This sort of functionality already exists in findmnt(1).
$ findmnt -rno TARGET /dev/sdc1
/mnt/Haven
/srv/nfs/pkgs
/srv/nfs/vmbin
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