tac

Display and concatenate files with lines in reversed order. See also: cat. More information: <https://www.gnu.org/software/coreutils/tac>.

Install

All systems
curl cmd.cat/tac.sh
Debian Debian
apt-get install coreutils
Ubuntu
apt-get install coreutils
Image Alpine
apk add coreutils
Arch Arch Linux
pacman -S coreutils
image/svg+xml Kali Linux
apt-get install coreutils
CentOS
yum install coreutils
Fedora
dnf install coreutils
Windows (WSL2)
sudo apt-get update sudo apt-get install coreutils
OS X
brew install coreutils
Raspbian
apt-get install coreutils
Docker
docker run cmd.cat/tac tac powered by Commando

Display and concatenate files with lines in reversed order. See also: cat. More information: <https://www.gnu.org/software/coreutils/tac>.

  • Concatenate specific files in reversed order:
    tac path/to/file1 path/to/file2 ...
  • Display `stdin` in reversed order:
    cat path/to/file | tac
  • Use a specific [s]eparator:
    tac -s separator path/to/file1 path/to/file2 ...
  • Use a specific [r]egex as a [s]eparator:
    tac -r -s separator path/to/file1 path/to/file2 ...
  • Use a separator [b]efore each file:
    tac -b path/to/file1 path/to/file2 ...

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