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use std::process::Command;
use std::io;
pub fn get_log(unit: &str, lines: i32) -> io::Result<String> {
let status = try!(Command::new("journalctl")
.args(&["-u", unit, "-n", &lines.to_string()])
.output());
Ok(String::from_utf8_lossy(&status.stdout).into_owned())
}
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