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- /xlv1/freeware/1998.May/fileutils/3.16/fileutils-3.16.diffbuild/man
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- CCCCHHHHMMMMOOOODDDD((((1111)))) FFFFSSSSFFFF ((((GGGGNNNNUUUU FFFFiiiilllleeee UUUUttttiiiilllliiiittttiiiieeeessss)))) CCCCHHHHMMMMOOOODDDD((((1111))))
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- NNNNAAAAMMMMEEEE
- chmod - change the access permissions of files
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- cccchhhhmmmmoooodddd [-Rcfv] [--recursive] [--changes] [--silent] [--quiet]
- [--verbose] [--help] [--version] mode file...
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- This documentation is no longer being maintained and may be
- inaccurate or incomplete. The Texinfo documentation is now
- the authoritative source.
-
- This manual page documents the GNU version of cccchhhhmmmmoooodddd. cccchhhhmmmmoooodddd
- changes the permissions of each given file according to
- _m_o_d_e, which can be either a symbolic representation of
- changes to make, or an octal number representing the bit
- pattern for the new permissions.
-
- The format of a symbolic mode is `[ugoa...][[+-
- =][rwxXstugo...]...][,...]'. Multiple symbolic operations
- can be given, separated by commas.
-
- A combination of the letters `ugoa' controls which users'
- access to the file will be changed: the user who owns it
- (u), other users in the file's group (g), other users not in
- the file's group (o), or all users (a). If none of these
- are given, the effect is as if `a' were given, but bits that
- are set in the umask are not affected.
-
- The operator `+' causes the permissions selected to be added
- to the existing permissions of each file; `-' causes them to
- be removed; and `=' causes them to be the only permissions
- that the file has.
-
- The letters `rwxXstugo' select the new permissions for the
- affected users: read (r), write (w), execute (or access for
- directories) (x), execute only if the file is a directory or
- already has execute permission for some user (X), set user
- or group ID on execution (s), save program text on swap
- device (t), the permissions that the user who owns the file
- currently has for it (u), the permissions that other users
- in the file's group have for it (g), and the permissions
- that other users not in the file's group have for it (o).
-
- A numeric mode is from one to four octal digits (0-7),
- derived by adding up the bits with values 4, 2, and 1. Any
- omitted digits are assumed to be leading zeros. The first
- digit selects the set user ID (4) and set group ID (2) and
- save text image (1) attributes. The second digit selects
- permissions for the user who owns the file: read (4), write
- (2), and execute (1); the third selects permissions for
- other users in the file's group, with the same values; and
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- Page 1 (printed 5/18/98)
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-
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- the fourth for other users not in the file's group, with the
- same values.
-
- cccchhhhmmmmoooodddd never changes the permissions of symbolic links; the
- cccchhhhmmmmoooodddd system call cannot change their permissions. This is
- not a problem since the permissions of symbolic links are
- never used. However, for each symbolic link listed on the
- command line, cccchhhhmmmmoooodddd changes the permissions of the pointed-
- to file. In contrast, cccchhhhmmmmoooodddd ignores symbolic links
- encountered during recursive directory traversals.
-
- OOOOPPPPTTTTIIIIOOOONNNNSSSS
- -_c, --_c_h_a_n_g_e_s
- Verbosely describe only files whose permissions
- actually change.
-
- -_f, --_s_i_l_e_n_t, --_q_u_i_e_t
- Do not print error messages about files whose
- permissions cannot be changed.
-
- -_v, --_v_e_r_b_o_s_e
- Verbosely describe changed permissions.
-
- -_R, --_r_e_c_u_r_s_i_v_e
- Recursively change permissions of directories and their
- contents.
-
- --_h_e_l_p
- Print a usage message on standard output and exit
- successfully.
-
- --_v_e_r_s_i_o_n
- Print version information on standard output then exit
- successfully.
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- Page 2 (printed 5/18/98)
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