[Live Now] Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Join for FREE! Join TestMu Conference

How to use Run method of exec Package

Best Venom code snippet using exec.Run

run.go

Source:run.go

...23		execCmd = []string{path}24	}25	return execCmd26}27var cmdRun = &Command{28	UsageLine: "run [build flags] [-exec xprog] gofiles... [arguments...]",29	Short:     "compile and run Go program",30	Long: `31Run compiles and runs the main package comprising the named Go source files.32A Go source file is defined to be a file ending in a literal ".go" suffix.33By default, 'go run' runs the compiled binary directly: 'a.out arguments...'.34If the -exec flag is given, 'go run' invokes the binary using xprog:35	'xprog a.out arguments...'.36If the -exec flag is not given, GOOS or GOARCH is different from the system37default, and a program named go_$GOOS_$GOARCH_exec can be found38on the current search path, 'go run' invokes the binary using that program,39for example 'go_nacl_386_exec a.out arguments...'. This allows execution of40cross-compiled programs when a simulator or other execution method is41available.42For more about build flags, see 'go help build'.43See also: go build.44	`,45}46func init() {47	cmdRun.Run = runRun // break init loop48	addBuildFlags(cmdRun)49	cmdRun.Flag.Var((*stringsFlag)(&execCmd), "exec", "")50}51func printStderr(args ...interface{}) (int, error) {52	return fmt.Fprint(os.Stderr, args...)53}54func runRun(cmd *Command, args []string) {55	raceInit()56	buildModeInit()57	var b builder58	b.init()59	b.print = printStderr60	i := 061	for i < len(args) && strings.HasSuffix(args[i], ".go") {62		i++63	}64	files, cmdArgs := args[:i], args[i:]65	if len(files) == 0 {66		fatalf("go run: no go files listed")67	}68	for _, file := range files {69		if strings.HasSuffix(file, "_test.go") {70			// goFilesPackage is going to assign this to TestGoFiles.71			// Reject since it won't be part of the build.72			fatalf("go run: cannot run *_test.go files (%s)", file)73		}74	}75	p := goFilesPackage(files)76	if p.Error != nil {77		fatalf("%s", p.Error)78	}79	p.omitDWARF = true80	for _, err := range p.DepsErrors {81		errorf("%s", err)82	}83	exitIfErrors()84	if p.Name != "main" {85		fatalf("go run: cannot run non-main package")86	}87	p.target = "" // must build - not up to date88	var src string89	if len(p.GoFiles) > 0 {90		src = p.GoFiles[0]91	} else if len(p.CgoFiles) > 0 {92		src = p.CgoFiles[0]93	} else {94		// this case could only happen if the provided source uses cgo95		// while cgo is disabled.96		hint := ""97		if !buildContext.CgoEnabled {98			hint = " (cgo is disabled)"99		}100		fatalf("go run: no suitable source files%s", hint)101	}102	p.exeName = src[:len(src)-len(".go")] // name temporary executable for first go file103	a1 := b.action(modeBuild, modeBuild, p)104	a := &action{f: (*builder).runProgram, args: cmdArgs, deps: []*action{a1}}105	b.do(a)106}107// runProgram is the action for running a binary that has already108// been compiled.  We ignore exit status.109func (b *builder) runProgram(a *action) error {110	cmdline := stringList(findExecCmd(), a.deps[0].target, a.args)111	if buildN || buildX {112		b.showcmd("", "%s", strings.Join(cmdline, " "))113		if buildN {114			return nil115		}116	}117	runStdin(cmdline)118	return nil119}120// runStdin is like run, but connects Stdin.121func runStdin(cmdline []string) {122	cmd := exec.Command(cmdline[0], cmdline[1:]...)123	cmd.Stdin = os.Stdin124	cmd.Stdout = os.Stdout125	cmd.Stderr = os.Stderr126	cmd.Env = origEnv127	startSigHandlers()128	if err := cmd.Run(); err != nil {129		errorf("%v", err)130	}131}...

Run

Using AI Code Generation

1import (2func main() {3    out, err := exec.Command("ls", "-ltr").Output()4    if err != nil {5        fmt.Println(err)6    }7    fmt.Println("The date is %s\n", out)8}9import (10func main() {11    cmd := exec.Command("ls", "-ltr")12    err := cmd.Start()13    if err != nil {14        fmt.Println(err)15    }16    fmt.Println("The date is %s\n", cmd)17}18import (19func main() {20    out, err := exec.Command("ls", "-ltr").CombinedOutput()21    if err != nil {22        fmt.Println(err)23    }24    fmt.Println("The date is %s\n", out)25}26import (27func main() {28    out, err := exec.Command("ls", "-ltr").Output()29    if err != nil {30        fmt.Println(err)31    }32    fmt.Println("The date is %s\n", out)33}34import (35func main() {36    path, err := exec.LookPath("ls")37    if err != nil {38        fmt.Println(err)39    }40    fmt.Println("The date is %s\n", path)41}42import (43func main() {44    path, err := exec.LookPath("ls")45    if err != nil {46        fmt.Println(err)47    }48    fmt.Println("The date is %s\n", path)49}50import (51func main() {52    path, err := exec.LookPath("ls")

Run

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("ls", "-ltr")4	stdout, err := cmd.Output()5	if err != nil {6		fmt.Println(err.Error())7	}8	fmt.Println(string(stdout))9}

Run

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("ls", "-l")4	stdout, err := cmd.StdoutPipe()5	if err != nil {6		fmt.Println(err)7	}8	if err := cmd.Start(); err != nil {9		fmt.Println(err)10	}11	for {12		buf := make([]byte, 1024)13		n, err := stdout.Read(buf)14		if err != nil {15		}16		fmt.Printf("%s", string(buf[:n]))17	}18}19import (20func main() {21	cmd := exec.Command("ls", "-l")22	stdout, err := cmd.Output()23	if err != nil {24		fmt.Println(err)25	}26	fmt.Printf("%s", stdout)27}28import (29func main() {30	path, err := exec.LookPath("ls")31	if err != nil {32		fmt.Println(err)33	}34	fmt.Printf("%s", path)35}36import (37func main() {38	ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)39	defer cancel()40	cmd := exec.CommandContext(ctx, "sleep", "5")41	if err := cmd.Start(); err != nil {42		fmt.Println(err)43	}44	if err := cmd.Wait(); err != nil {45		fmt.Println(err)46	}47}48import (49func main() {50	cmd := exec.Command("ls", "-l")51	if err := cmd.Run(); err != nil {52		fmt.Println(err)53	}54}55import (56func main() {57	cmd := exec.Command("ls", "-l")58	if err := cmd.Run(); err != nil {59		fmt.Println(err)60	}61}

Run

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("ls", "-ltr")4	output, err := cmd.Output()5	if err != nil {6		fmt.Println(err.Error())7	}8	fmt.Println(string(output))9}10Method 2: Run() method11func (c *Cmd) Run() error12import (13func main() {14	cmd := exec.Command("ls", "-ltr")15	err := cmd.Run()16	if err != nil {17		fmt.Println(err.Error())18	}19	fmt.Println("Command executed successfully")20}21Method 3: Start() method22func (c *Cmd) Start() error23import (24func main() {25	cmd := exec.Command("ls", "-ltr")26	err := cmd.Start()27	if err != nil {28		fmt.Println(err.Error())29	}30	fmt.Println("

Run

Using AI Code Generation

1import (2func main() {3    cmd := exec.Command("ls", "-l")4    out, err := cmd.Output()5    if err != nil {6        fmt.Println(err)7    }8    fmt.Println(string(out))9}10import (11func main() {12    cmd := exec.Command("ls", "-l")13    err := cmd.Run()14    if err != nil {15        fmt.Println(err)16    }17    fmt.Println("Command executed successfully")18}19import (20func main() {21    cmd := exec.Command("ls", "-l")22    err := cmd.Start()23    if err != nil {24        fmt.Println(err)25    }26    fmt.Println("Command executing...")27    err = cmd.Wait()28    if err != nil {29        fmt.Println(err)30    }31    fmt.Println("Command executed successfully")32}33import (34func main() {35    cmd := exec.Command("ls", "-l")36    out, err := cmd.CombinedOutput()37    if err != nil {38        fmt.Println(err)39    }40    fmt.Println(string(out))41}42import (43func main() {44    cmd := exec.Command("ls", "-l")45    stdout, err := cmd.StdoutPipe()46    if err != nil {47        fmt.Println(err)48    }49    if err := cmd.Start(); err != nil {50        fmt.Println(err)51    }52    if _, err := io.Copy(os.Stdout, stdout); err != nil {53        fmt.Println(err)54    }55    if err := cmd.Wait(); err != nil {

Run

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("ls", "-ltr")4	out, err := cmd.Output()5	if err != nil {6		log.Fatal(err)7	}8	fmt.Println(string(out))9}10import (11func main() {12	cmd := exec.Command("ls", "-ltr")13	err := cmd.Run()14	if err != nil {15		log.Fatal(err)16	}17	fmt.Println("Command executed successfully")18}19import (20func main() {21	cmd := exec.Command("ls", "-ltr")22	err := cmd.Start()23	if err != nil {24		log.Fatal(err)25	}26	fmt.Println("Command executed successfully")27}28import (29func main() {30	cmd := exec.Command("ls", "-ltr")31	out, err := cmd.CombinedOutput()32	if err != nil {33		log.Fatal(err)34	}35	fmt.Println(string(out))36}37import (38func main() {39	path, err := exec.LookPath("ls")40	if err != nil {41		log.Fatal(err)42	}43	fmt.Println(path)44}45import (46func main() {47	ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)48	defer cancel()49	cmd := exec.CommandContext(ctx, "sleep", "5")50	err := cmd.Run()51	if err != nil {52		log.Fatal(err)53	}54	fmt.Println("Command executed successfully")55}56import (57func main() {58	ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second

Run

Using AI Code Generation

1import (2func main() {3    cmd := exec.Command("ls", "-l")4    err := cmd.Run()5    if err != nil {6        fmt.Println("Error: ", err)7    }8}9import (10func main() {11    cmd := exec.Command("/bin/ls", "-l")12    err := cmd.Run()13    if err != nil {14        fmt.Println("Error: ", err)15    }16}17import (18func main() {19    cmd := exec.Command("/bin/ls", "-l")20    output, err := cmd.CombinedOutput()21    if err != nil {22        fmt.Println("Error: ", err)23    }24    fmt.Println("Output: ", string(output))25}

Run

Using AI Code Generation

1import (2func main() {3    cmd := exec.Command("ls")4    err := cmd.Run()5    if err != nil {6        fmt.Println(fmt.Sprint(err) + ": " + stderr.String())7    }8    fmt.Println("Result: " + out.String())9}10import (11func main() {12    out, err := exec.Command("ls").Output()13    if err != nil {14        fmt.Println(err)15    }16    fmt.Println("Result: " + string(out))17}18import (19func main() {20    out, err := exec.Command("ls").CombinedOutput()21    if err != nil {22        fmt.Println(err)23    }24    fmt.Println("Result: " + string(out))25}26import (27func main() {28    cmd := exec.Command("sleep", "5")29    err := cmd.Start()30    if err != nil {31        fmt.Println(err)32    }33    fmt.Println("Waiting for command to finish...")34    err = cmd.Wait()35    fmt.Println("Command finished with error: ", err)36    time.Sleep(10 * time.Second)37}38import (39func main() {40    cmd := exec.Command("sleep", "5")41    err := cmd.Start()42    if err != nil {43        fmt.Println(err)44    }45    fmt.Println("Waiting for command to finish...")46    time.Sleep(10 * time.Second)47    err = cmd.Wait()48    fmt.Println("Command finished with error: ", err)49}

Run

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("ls", "-al")4	cmd.Run()5	fmt.Println("Done")6}7import (8func main() {9	cmd := exec.Command("ls", "-al")10	output, err := cmd.Output()11	if err != nil {12		panic(err)13	}14	fmt.Println(string(output))15	fmt.Println("Done")16}17import (18func main() {19	cmd := exec.Command("ls", "-al")20	output, err := cmd.CombinedOutput()21	if err != nil {22		panic(err)23	}24	fmt.Println(string(output))25	fmt.Println("Done")26}27import (28func main() {29	cmd := exec.Command("ls", "-al")30	err := cmd.Start()31	if err != nil {32		panic(err)33	}34	fmt.Println("Done")35}36import (37func main() {38	cmd := exec.Command("ls", "-al")39	err := cmd.Start()40	if err != nil {41		panic(err)42	}43	err = cmd.Wait()44	if err != nil {45		panic(err)46	}47	fmt.Println("Done")48}49import (50func main() {51	cmd := exec.Command("sort")52	stdin, err := cmd.StdinPipe()53	if err != nil {54		panic(err)55	}56	err = cmd.Start()57	if err != nil {58		panic(err)59	}60	stdin.Write([]byte("some input"))61	stdin.Close()62	err = cmd.Wait()63	if err != nil {64		panic(err)65	}66	fmt.Println("Done")67}68import (69func main() {

Run

Using AI Code Generation

1import (2func main() {3	res, err := exec.Command("ls").Output()4	if err != nil {5		panic(err)6	}7	fmt.Println(string(res))8}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.