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⚡ TLDR: cat (tldr-pages)

Print and concatenate files.

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}}

CAT(1) User Commands CAT(1)

NAME
cat - concatenate files and print on the standard output

SYNOPSIS
cat [OPTION]... [FILE]...

DESCRIPTION
Concatenate FILE(s) to standard output.

With no FILE, or when FILE is -, read standard input.

-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 as ^I

-u (ignored)

-v, --show-nonprinting
use ^ and M- notation, except for LFD and TAB

--help display this help and exit

--version
output version information and exit

EXAMPLES
cat f - g
Output f's contents, then standard input, then g's contents.

cat Copy standard input to standard output.

AUTHOR
Written by Torbjorn Granlund and Richard M. Stallman.

REPORTING BUGS
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>

COPYRIGHT
Copyright © 2020 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later
<https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to
the extent permitted by law.