tldr/pages/common/cat.md

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# cat
> Print and concatenate files.
> More information: <https://www.gnu.org/software/coreutils/cat>.
- Print the contents of a file to the standard output:
`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 into an output file:
`cat {{path/to/file1}} {{path/to/file2}} >> {{path/to/output_file}}`
- Number all output lines:
`cat -n {{path/to/file}}`
- Display non-printable and whitespace characters (with `M-` prefix if non-ASCII):
`cat -v -t -e {{path/to/file}}`