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Diffstat (limited to 'doc/coreutils.texi')
| -rw-r--r-- | doc/coreutils.texi | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi index 3a180f669..ee8179246 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -7772,6 +7772,24 @@ removal is requested. Equivalent to @option{-I}. Specifying @option{--interactive} and no @var{when} is equivalent to @option{--interactive=always}. +@itemx --one-file-system +@opindex --one-file-system +@cindex one file system, restricting @command{rm} to +When removing a hierarchy recursively, skip any directory that is on a +file system different from that of the corresponding command line argument. + +This option is useful when removing a build ``chroot'' hierarchy, +which normally contains no valuable data. However, it is not uncommon +to bind-mount @file{/home} into such a hierarchy, to make it easier to +use one's start-up file. The catch is that it's easy to forget to +unmount @file{/home}. Then, when you use @command{rm -rf} to remove +your normally throw-away chroot, that command will remove everything +under @file{/home}, too. +Use the @option{--one-file-system} option, and it will +warn about and skip directories on other file systems. +Of course, this will not save your @file{/home} if it and your +chroot happen to be on the same file system. + @itemx --preserve-root @opindex --preserve-root @cindex root directory, disallow recursive destruction |