Macro cmd_lib_macros::spawn_with_output [−][src]
spawn_with_output!() { /* proc-macro */ }
Expand description
Run commands with/without pipes as a child process, returning a handle to capture the final output
let mut procs = vec![]; for _ in 0..4 { let proc = spawn_with_output!( sudo bash -c "dd if=$file of=/dev/null bs=$block_size skip=$off count=$cnt 2>&1" | awk r#"/copied/{print $(NF-1) " " $NF}"# )?; procs.push(proc); } for (i, mut proc) in procs.into_iter().enumerate() { let bandwidth = proc.wait_fun_result()?; run_cmd!(info "thread $i bandwidth: $bandwidth MB/s")?; }