tldr/pages/common/tac.md

597 B

tac

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 ...}}