├── README.md
├── .gitignore
└── main.go


/README.md:
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1 | command
2 | =======
3 | 
4 | golang exec command
5 | 


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/.gitignore:
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 1 | # Compiled Object files, Static and Dynamic libs (Shared Objects)
 2 | *.o
 3 | *.a
 4 | *.so
 5 | 
 6 | # Folders
 7 | _obj
 8 | _test
 9 | 
10 | # Architecture specific extensions/prefixes
11 | *.[568vq]
12 | [568vq].out
13 | 
14 | *.cgo1.go
15 | *.cgo2.c
16 | _cgo_defun.c
17 | _cgo_gotypes.go
18 | _cgo_export.*
19 | 
20 | _testmain.go
21 | 
22 | *.exe
23 | 


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/main.go:
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 1 | package main
 2 | 
 3 | import (
 4 | 	"fmt"
 5 | 	"io/ioutil"
 6 | 	"os/exec"
 7 | )
 8 | 
 9 | func run() {
10 | 	cmd := exec.Command("/bin/sh", "-c", "ping 127.0.0.1")
11 | 	_, err := cmd.Output()
12 | 	if err != nil {
13 | 		panic(err.Error())
14 | 	}
15 | 
16 | 	if err := cmd.Start(); err != nil {
17 | 		panic(err.Error())
18 | 	}
19 | 
20 | 	if err := cmd.Wait(); err != nil {
21 | 		panic(err.Error())
22 | 	}
23 | }
24 | 
25 | func main() {
26 | 	go run()
27 | 
28 | 	cmd := exec.Command("/bin/sh", "-c", `ps -ef | grep -v "grep" | grep "ping"`)
29 | 	stdout, err := cmd.StdoutPipe()
30 | 	if err != nil {
31 | 		fmt.Println("StdoutPipe: " + err.Error())
32 | 		return
33 | 	}
34 | 
35 | 	stderr, err := cmd.StderrPipe()
36 | 	if err != nil {
37 | 		fmt.Println("StderrPipe: ", err.Error())
38 | 		return
39 | 	}
40 | 
41 | 	if err := cmd.Start(); err != nil {
42 | 		fmt.Println("Start: ", err.Error())
43 | 		return
44 | 	}
45 | 
46 | 	bytesErr, err := ioutil.ReadAll(stderr)
47 | 	if err != nil {
48 | 		fmt.Println("ReadAll stderr: ", err.Error())
49 | 		return
50 | 	}
51 | 
52 | 	if len(bytesErr) != 0 {
53 | 		fmt.Printf("stderr is not nil: %s", bytesErr)
54 | 		return
55 | 	}
56 | 
57 | 	bytes, err := ioutil.ReadAll(stdout)
58 | 	if err != nil {
59 | 		fmt.Println("ReadAll stdout: ", err.Error())
60 | 		return
61 | 	}
62 | 
63 | 	if err := cmd.Wait(); err != nil {
64 | 		fmt.Println("Wait: ", err.Error())
65 | 		return
66 | 	}
67 | 
68 | 	fmt.Printf("stdout: %s", bytes)
69 | }
70 | 


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