A command line gadget by rust

Related tags

Command-line mini-grep
Overview

mini-grep

A command line gadget by rust

Examples 🌰

1. Normal use

Input:

cargo run cold rainy.txt

Output:

There are 2 matching results
The day is cold,and dark,and dreary; 
My life is cold and dark and dreary;

2. No result

Input:

cargo run apple rainy.txt

Output:

There is no matching results

3. Lack of parameters

Input:

cargo run

Output:

The arguments is not enough

4. Non-existent file

Input:

cargo run test test.txt

Output:

Application error: No such file or directory (os error 2)
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