The GNU Core Utilities or coreutils is a package of software containing implementations for many of the basic tools, such as cat, ls, and rm, which are used on Unix-like operating systems.
One of the other utilities included with coreutils is tac. It concatenates and prints files in reverse.
tac is the reverse of cat.
We can pipe the output of tac to tac to reproduce what cat does. $ tac / file | tac
This is free and open source software.
Website: www.gnu.org/software/coreutils
Support:
Developer: Free Software Foundation, Inc
License: GNU General Public License v3.0

tac is written in C. Learn C with our recommended free books and free tutorials.
Related Software
| Alternatives to cat | |
|---|---|
| bat | Super charged cat - Features in our Top 100 CLI Apps |
| mdcat | Sophisticated Markdown rendering for the terminal - Features in our Top 100 TUI Apps |
| grcat | Frontend for generic colouriser grc |
| tac | Concatenate and print files in reverse |
| ccat | Colorizing cat |
| see | Cute cat replacement |
| lolcat | Add some zest to the cat command. Features in our Linux Candy series |
| kat | cat command that almost tastes like chocolate |
| meow | Renders text using your existing Neovim configuration |
| mcat | Extended cat command |
| batdoc | cat for Office documents and PDFs |
| umber | Designed to replace cat for reading source code and other text files |
| rucat | Aimed at developers and system administrators |
| peek | Multi-buffer terminal pager |
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