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    @Gilles Actually, you can do this simply using findmnt | fgrep [ as explained here. Commented Mar 6, 2012 at 16:39
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    @Gilles What mount --version are you using that records any bind information in /etc/mtab? I am using version 2.20.1 and I looked at the latest sources and in neither case do I see bind information recorded anywhere that would allow you to grep for bind. On the other hand, what I suggested in my answer does in fact list bind mounts created with --bind as well as using the bind option. Commented Mar 6, 2012 at 18:16
  • @aculich </etc/mtab awk … is POSIX-compliant (I forget whether it's supported in Bourne). Please check your facts. I can confirm that /etc/mtab has the bind option for a filesystem mounted with mount --bind /source /target on Debian stable (mount from util-linux-ng 2.17.2). Commented Mar 6, 2012 at 21:10
  • @Gilles I deleted my errant comment to remove confusion. You're right, it is indeed POSIX-compliant. Also now I understand the reason we are seeing different behavior of mount and /etc/mtab. You are using Debian stable which has the older version of util-linux-ng; I am using Debian testing which has a newer version that no longer seems to have the same /etc/mtab behavior, which is maybe why @rozcietrzewiacz did not see bind in in /etc/mtab if his distribution is also using a newer version? Commented Mar 6, 2012 at 21:44
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    @aculich You should post findmnt as an answer. It only works if the target directory is not another mount point, by the way. Try for example sudo mount --bind / foo && findmnt | grep foo Commented Nov 19, 2013 at 22:56