cat copies each file (‘-’ means standard input), or standard input if none are given, to standard output. Synopsis:
cat [option] [file]...
The program accepts the following options. Also see Common options.
On systems like MS-DOS that distinguish between text and binary files, cat normally reads and writes in binary mode. However, cat reads in text mode if one of the options -bensAE is used or if cat is reading from standard input and standard input is a terminal. Similarly, cat writes in text mode if one of the options -bensAE is used or if standard output is a terminal.
An exit status of zero indicates success, and a nonzero value indicates failure.
# Output f's contents, then standard input, then g's contents. cat f - g # Copy standard input to standard output. cat