Rust cat

A Rust implementation of the cat command line tool.

Introduciton

The cater command writes the contents of a file, or files, to the standard output in command-line order. cater takes the relative path of a file, or files, as an argument(s). This implementation includes four flags:

-h, --help Prints help information.

-n, --number Numbers each line of standard output begining at 1.

-b, --number-nonblank Numbers all nonblank lines written to the standard output.

-v, --version Prints version information.

Example

Here we have a local document stored in the same directory as cater named test.txt. To run cater with test.txt as an argument:

cargo run cater -- ./test.txt

To number all lines of the output:

cargo run cater -- ./test.txt -n

To number only nonblank lines of the output:

cargo run cater -- ./test.txt -b