Commands · Command

CommandLinuxmacOS

cat

cat [options] file...

Prints the contents of one or more files to the terminal; also used to quickly concatenate files together.

// FLAGS

-nnumber each output line
-Ashow non-printing characters like tabs and line endings

// EXAMPLE

cat /etc/os-release — dumps the file straight to the terminal, a quick way to check OS version info.

// GOTCHA

Running cat on a large binary file can flood the terminal with garbage output (and occasionally scramble the terminal's display settings) — it's meant for text files.

// RELATED COMMANDS