grep support added

Cargo.toml

@@ -4,3 +4,4 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+log = "0.4.22"

README.md

@@ -58,7 +58,7 @@ cli_utils find /path/to/search -name "filename"
 Searches for a pattern within files:
 
 ```bash
-cli_utils grep "search_term" file.txt
+cli_utils grep file.txt "search_term"
 ```
 
 ## Contributing

src/commands/grep.rs

@@ -1 +1,10 @@
-pub fn execute(_file_name: String, _text: String) {}
+use std::fs::read_to_string;
+
+pub fn execute(file_name: String, text: String) {
+    for line in read_to_string(file_name).unwrap().lines() {
+        let cur_line = line.to_string();
+        if cur_line.contains(text.as_str()) {
+            println!("{}", cur_line)
+        }
+    }
+}

src/commands/ls.rs

@@ -1,3 +1,8 @@
-pub fn execute(_dirs: &[String]) {}
+pub fn execute(dirs: &[String]) {
+    for dir in dirs {
+        println!("{} contains following files:", dir);
+        list_dir(dir);
+    }
+}
 
 fn list_dir(_dir: &String) {}

src/main.rs

@@ -1,7 +1,6 @@
 mod commands;
 
 use std::env;
-use std::io::prelude::*;
 
 fn main() {
     let args: Vec<String> = env::args().collect();