mini-grep
A command line gadget by rust
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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)