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chmod now preserves setuid and setgid bits on directories

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if you use a numeric mode with them clear, e.g., "chmod 755 DIR".
This commit is contained in:
Paul Eggert 2006-07-28 07:27:56 +00:00
parent e7583d05d3
commit 6eb119a91e
1 changed files with 4 additions and 2 deletions
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6
NEWS
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@ -31,8 +31,10 @@ GNU coreutils NEWS -*- outline -*-
`chmod 755 DIR' and `chmod u=rwx,go=rx DIR' now preserve DIR's
set-user-ID and set-group-ID bits instead of clearing them, and
similarly for `mkdir -m 755 DIR' and `mkdir -m u=rwx,go=rx DIR'. To
clear the bits, mention them explicitly, e.g., `chmod 0755 DIR' or
`mkdir -m a-s,u=rwx,go=rx DIR'. This change is for convenience on
clear the bits, mention them explicitly in a symbolic mode, e.g.,
`mkdir -m u=rwx,go=rx,-s DIR'. To set them, mention them explicitly
in either a symbolic or a numeric mode, e.g., `mkdir -m 2755 DIR',
`mkdir -m u=rwx,go=rx,g+s' DIR. This change is for convenience on
systems where these bits inherit from parents. Unfortunately other
operating systems are not consistent here, and portable scripts
cannot assume the bits are set, cleared, or preserved, even when the