Function command_exists 

pub fn command_exists(cmd: &str) -> bool

Check if a command exists in the system PATH.

Uses which on Unix systems to check for command availability. Returns true if the command is found, false otherwise.

Validation

• VAL-INFRA-016: command_exists utility function

Examples

use rusty_stack::installers::common::utils::command_exists;

if command_exists("python3") {
    println!("Python 3 is available");
}