NAME¶

cat - Concatenate FILE(s), or standard input, to standard output With no FILE, or when FILE is -, read standard input.

SYNOPSIS¶

cat [-A|--show-all] [-b|--number-nonblank] [-e ] [-E|--show-ends] [-n|--number] [-s|--squeeze-blank] [-t ] [-T|--show-tabs] [-v|--show-nonprinting] [-u ] [-h|--help] [-V|--version] [file]

DESCRIPTION¶

Concatenate FILE(s), or standard input, to standard output With no FILE, or when FILE is -, read standard input.

OPTIONS¶

-A, --show-all

equivalent to -vET

-b, --number-nonblank

number nonempty output lines, overrides -n

-e

equivalent to -vE

-E, --show-ends

display $ at end of each line

-n, --number

number all output lines

-s, --squeeze-blank

suppress repeated empty output lines

-t

equivalent to -vT

-T, --show-tabs

display TAB characters at ^I

-v, --show-nonprinting

use ^ and M- notation, except for LF (\n) and TAB (\t)

-u

(ignored)

-h, --help

Print help

-V, --version

Print version

VERSION¶

v(uutils coreutils) 0.7.0

EXAMPLES¶

Print the contents of a file to `stdout`:

cat path/to/file

Concatenate several files into an output file:

cat path/to/file1 path/to/file2 ... > path/to/output_file

Append several files to an output file:

cat path/to/file1 path/to/file2 ... >> path/to/output_file

Copy the contents of a file into an output file without buffering:

cat -u /dev/tty12 > /dev/tty13

Write `stdin` to a file:

cat - > path/to/file

The examples are provided by the tldr-pages project <https://tldr.sh> under the CC BY 4.0 License. Please note that, as uutils is a work in progress, some examples might fail.