---
name: "uu-tac"
section: "1"
platform: "linux"
package: "uutils-coreutils"
version: "0.12.0-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/uu-tac"
---

# uu-tac(1)

Write each file to standard output, last line first.

## NAME

tac - Write each file to standard output, last line first.

## SYNOPSIS

**tac** \[OPTION\]... \[FILE\]...

## DESCRIPTION

Write each file to standard output, last line first.

## OPTIONS

- **-b**, **--before**

  attach the separator before instead of after

- **-r**, **--regex**

  interpret the sequence as a regular expression

- **-s**, **--separator** *\<STRING\>*

  use STRING as the separator instead of newline

- **-h**, **--help**

  Print help

- **-V**, **--version**

  Print version

## VERSION

v(uutils coreutils) 0.12.0