4.2BSD/usr/man/man1/mkdir.1

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.TH MKDIR 1  "18 January 1983"
.SH NAME
mkdir \- make a directory
.SH SYNOPSIS
.B mkdir
dirname ...
.SH DESCRIPTION
.I Mkdir
creates specified directories in mode 777.
Standard entries,
.RB ` . ',
for the directory itself, and 
.lg 0
.BR ` .. '
.lg 1
for its parent, are made automatically.
.PP
.I Mkdir
requires write permission in the parent directory.
.SH "SEE ALSO"
rmdir(1)