[DragonFlyBSD - Submit #2546] Add an option to rm to prevent recursive rm crossing mount points

[Joris giovannangeli via Redmine]

Issue #2546 has been reported by jorisgio.

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Submit #2546: Add an option to rm to prevent recursive rm crossing mount points
http://bugs.dragonflybsd.org/issues/2546

Author: jorisgio
Status: New
Priority: Normal
Assignee: 
Category: 
Target version: 


With null mounts, rm -r in root can be dangerous. GNU rm as an option for that :

       --one-file-system
              when removing a  hierarchy  recursively,  skip
              any directory that is on a file system differ‐
              ent from that  of  the  corresponding  command
              line argument

Here is an easy patch to add a similar option to rm. 


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