.TH CAT 1 "2008-1.01" "pdcore utilities" "User Commands"
.SH NAME
cat \- concatenate file(s) to standard output
.SH SYNOPSIS
.B cat
[-u] [file ...]
.SH DESCRIPTION
Sequentially read input files and write their contents to standard output.
.SH OPTIONS
.TP
-u
Fully unbuffered read and write.
.SH OPERANDS
.TP
file
Input file(s). If none provided, or the filename '-' is passed to cat,
standard input will be used.
.SH NOTES
As files are processed sequentially, beware of shell commands like
.P
.RS
cat x y > x
.RE
.P
which destroy input files before reading them.
.SH "AUTHORITATIVE DOCUMENTATION"
<http://www.opengroup.org/onlinepubs/9699919799/utilities/cat.html>
.SH VERSION AND COMPLIANCE
Utility version 1.01
.P
Functional compliance with POSIX:2008 (IEEE Std 1003.1-2008;
Shell and Utilities, Base Specifications Issue 7).
.SH UNLICENSE
This is free and unencumbered software released into the public domain,
provided "as is", without warranty of any kind, express or implied. See the
file UNLICENSE and the website <http://unlicense.org> for further details.