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电梯直达

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发表于 2007-06-26 17:40 |只看该作者 |倒序浏览

freebsd# ls -l
total 1870
-r-xr-xr-x  1 root  wheel 7352 Oct 16  2004 bonobo-activation-sysconf
-rwxr-xr-x  1 root  wheel  897420 Jun 20 10:15 cvsupd
-r-xr-xr-x  1 bin bin    79080 May 20 15:34 editmap
-r-xr-xr-x  1 root  wheel 11016 May 27 08:55 httplog
-r-xr-xr-x  1 bin bin    68539 May 20 15:34 mailstats
-r-xr-xr-x  1 bin bin    83136 May 20 15:34 makemap
-r-xr-xr-x  1 root  wheel 4916 May 31 17:42 mkcomposecache
-r-xr-xr-x  1 bin bin    80394 May 20 15:34 praliases
-r-xr-sr-x  1 root  smmsp  626482 May 20 15:34 sendmail
===================================================
-r-xr-sr-x中的s是什么意思

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HonestQiao

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发表于 2007-06-26 17:46 |只看该作者

setuid？

man ls

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langue

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3楼 [报告]

发表于 2007-06-26 17:50 |只看该作者

man 1 chmod
...
   The perm (permission symbols) represent the portions of the mode bits as
   follows:

         r    Read bits.
         s    Set-user-ID and set-group-ID on execution bits.
         t    Sticky bit.
         w    Write bits.
         x    Execute/search bits.
         X    The execute/search bits if the file is a directory or any
               of the execute/search bits are set in the original (unmodi-
               fied) mode.  Operations with the perm symbol `X' are only
               meaningful in conjunction with the op symbol `+', and are
               ignored in all other cases.
         u    User permission bits in the mode of the original file.
         g    Group permission bits in the mode of the original file.
         o    Other permission bits in the mode of the original file.
...