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| author | Sergey Poznyakoff <gray@gnu.org.ua> | 2014-01-02 15:44:36 -0500 |
|---|---|---|
| committer | Sergey Poznyakoff <gray@gnu.org.ua> | 2014-01-30 13:33:47 +0200 |
| commit | 033cd6816fe4db1a6a8f564183333f9b78354246 (patch) | |
| tree | 482dd462b10dccd8f05ca968dc49d2abfbb4ab1e /doc/cpio.texi | |
| parent | 9e2d258c81af9f8cedba2e4b8874fbaea59b43c4 (diff) | |
| download | cpio-033cd6816fe4db1a6a8f564183333f9b78354246.tar.gz cpio-033cd6816fe4db1a6a8f564183333f9b78354246.tar.bz2 | |
Treat UID/GID as numeric if prefixed by + (-R option)
The IDs supplied with the -R option are treated as numeric (without
looking them up in the system database), when prefixed with +. This
allows to force using numeric value if a user (group) with a numeric
name exists in the database.
Reported by Joshua Briefman <sirgatez@gmail.com>.
* src/userspec.c (parse_user_spec): Use + as an indicator of
a numeric UID/GID.
* doc/cpio.1: Document changes.
* doc/cpio.texi: Likewise.
Diffstat (limited to 'doc/cpio.texi')
| -rw-r--r-- | doc/cpio.texi | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/doc/cpio.texi b/doc/cpio.texi index 5a739ab..7c60d5f 100644 --- a/doc/cpio.texi +++ b/doc/cpio.texi @@ -295,7 +295,7 @@ Use @var{command} instead of @command{rsh} to access remote archives. @item -R @itemx --owner=[@var{user}][:.][@var{group}] Set the ownership of all files created to the specified @var{user} -and/or @var{group}. +and/or @var{group}. @xref{owner}. @item -v @itemx --verbose Verbosely list the files processed. @@ -515,7 +515,7 @@ Interactively rename files @item -R @itemx --owner=[@var{user}][:.][@var{group}] Set the ownership of all files created to the specified @var{user} -and/or @var{group}. +and/or @var{group}. @xref{owner}. @item -s @itemx --swap-bytes Swap the bytes of each halfword in the files @@ -796,6 +796,7 @@ Run in copy-pass mode. [@ref{copy-in}] @*Interactively rename files. +@anchor{owner} @item -R @var{owner} @itemx --owner @var{owner} [@ref{copy-in},@ref{copy-out},@ref{copy-pass}] @@ -817,6 +818,23 @@ cpio --owner :users @end group @end smallexample +The argument parts are first looked up in the system user and +group databases, correspondingly. If any of them is not found there, +it is treated as numeric UID or GID, provided that it consists of +decimal digits only. + +To avoid the lookup and ensure that arguments are treated as numeric +values, prefix them with a plus sign, e.g.: + +@smallexample +@group +cpio --owner +0 +cpio --owner +0: +cpio --owner +0:+0 +cpio --owner :+0 +@end group +@end smallexample + @noindent If the group is omitted but the @samp{:} or @samp{.} separator is given, as in the second example. the given user's login group will be |