Created
June 19, 2022 05:31
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[Go] Command Output
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package main | |
import( | |
"log" | |
"os/exec" | |
"io" | |
) | |
func main() { | |
process := exec.Command("ls", "-la") | |
stdout, err := process.StdoutPipe() | |
if err != nil { | |
log.Fatal(err) | |
} | |
if err = process.Start(); err != nil { | |
log.Fatal(err) | |
} | |
done := make(chan struct{}, 1) | |
go func () { | |
outputs := make([]byte, 512) | |
line := make([]byte, 80) | |
for { | |
if n, err := stdout.Read(line); err != nil { | |
if err == io.EOF { | |
if n > 0 { | |
outputs = append(outputs, line...) | |
} | |
break | |
} | |
log.Fatal(err) | |
} | |
outputs = append(outputs, line...) | |
line = line[0:] | |
} | |
log.Print(string(outputs)) | |
done <- struct{}{} | |
}() | |
if err = process.Wait(); err != nil { | |
log.Fatal(err) | |
} | |
<-done | |
} |
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