DOT-Files/Gentoo/gentooamd/home/user/.tldrc/tldr/pages/linux/cat.md

cat

Print and concatenate files. More information: https://www.gnu.org/software/coreutils/manual/html_node/cat-invocation.html.

• Print the contents of a file to stdout:

cat {{path/to/file}}

• Concatenate several files into an output file:

cat {{path/to/file1 path/to/file2 ...}} > {{path/to/output_file}}

• Append several files to an output file:

cat {{path/to/file1 path/to/file2 ...}} >> {{path/to/output_file}}

• Write to a file interactively:

cat > {{path/to/file}}

• Number all output lines:

cat {{[-n|--number]}} {{path/to/file}}

• Display all characters, including tabs, line endings, and non-printing characters:

cat {{[-A|--show-all]}} {{path/to/file}}

• Pass file contents to another program through stdin:

cat {{path/to/file}} | {{program}}