.Dd January 17, 2015
.Dt CHMOD 1 sbase\-VERSION
.Sh NAME
.Nm chmod
.Nd change file mode
.Sh SYNOPSIS
.Nm chmod
.Op Fl R
.Ar mode
.Op Ar file ...
.Sh DESCRIPTION
.Nm
changes the file mode of the given files.
.Pp
If
.Ar mode
is
.Em octal
"[sog]e"
.Bl -tag -width Ds
.It s
.Xr sticky 1 => s += 1
.Pp
.Xr setgid 2 => s += 2
.Pp
.Xr setuid 4 => s += 4
.It o|g|e
owner | group | everyone
.Pp
.Xr execute 1 => o|g|e += 1
.Pp
.Xr write 2 => o|g|e += 2
.Pp
.Xr read 4 => o|g|e += 4
.El
.Pp
Leading zeroes may be omitted.
.Pp
If
.Ar mode
is
.Em symbolic
"[ugoa]*[+-=][rwxst]*"
.Bl -tag -width Ds
.It u|g|o|a
owner | group | other (non-group) | everyone
.It +|-|=
add | remove | set
.It r|w|x|s|t
read | write | execute | setuid and setgid | sticky
.El
.Sh OPTIONS
.Bl -tag -width Ds
.It Fl R
Change modes recursively
.El
.Sh STANDARDS
The
.Nm
utility is compliant with the
.St -p1003.1-2008
specification.
.Pp
The
.Op Fl R
flag is an extension to that specification.