mirror of
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75 lines
1.3 KiB
Groff
75 lines
1.3 KiB
Groff
.TH CHMOD 1 sbase\-VERSION
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.SH NAME
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chmod \- change file mode
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.SH SYNOPSIS
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.B chmod
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.RB [ \-r ]
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.I octal
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.RI [ file ...]
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.P
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.B chmod
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.RB [ \-r ]
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.RB [ ugoa ]*[ +-= ][ rwxst ]*
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.RI [ file ...]
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.SH DESCRIPTION
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.B chmod
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changes the file mode for the given files.
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.P
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If the mode is an
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.I octal
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number, the modes are set according to that number's comprising bits. The first
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digit defines the setuid (4), setgid (2), and sticky (1) attributes. The second digit
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defines the owner's permissions: read (4), write (2), and execute (1); the third
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defines permissions for others in the file's group; and the fourth for all other
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users. Leading zeroes may be omitted.
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.P
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Alternatively the mode may be symbolic. The symbol meanings are:
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.TP
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.B u
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modifies owner permissions.
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.PD 0
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.TP
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.B g
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modifies group permissions.
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.TP
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.B o
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modifies other user permissions.
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.TP
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.B a
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modifies all user permissions.
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.PD
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.TP
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.B +
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adds the given permissions to the mode.
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.PD 0
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.TP
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.B -
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removes the given permissions from the mode.
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.TP
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.B =
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sets the mode to the given permissions.
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.PD
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.TP
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.B r
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read permissions.
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.PD 0
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.TP
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.B w
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write permissions.
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.TP
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.B x
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execute permissions.
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.TP
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.B s
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setuid and setgid attributes.
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.TP
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.B t
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sticky attribute.
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.PD
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.SH OPTIONS
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.TP
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.B \-r
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change directory mode recursively.
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.SH SEE ALSO
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.IR chmod (2)
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