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How to use after method of cmd Package

Best Gauge code snippet using cmd.after

gyre.go

Source:gyre.go

...82	}83	go n.actor()84	return g, n, nil85}86// UUID returns our node UUID, after successful initialization87func (g *Gyre) UUID() string {88	uuid, err := g.nodeUUID()89	if err != nil {90		log.Println(err)91	}92	return uuid93}94func (g *Gyre) nodeUUID() (string, error) {95	if g.uuid != "" {96		return g.uuid, nil97	}98	select {99	case g.cmds <- &cmd{cmd: cmdUUID}:100	case <-time.After(timeout):101		return "", fmt.Errorf("Node is not responding to %s command", cmdUUID)102	}103	select {104	case r := <-g.replies:105		if out, ok := r.(*reply); ok && out.err != nil {106			return "", fmt.Errorf("%s command replied with an invalid reply", cmdUUID)107		} else if uuid, ok := out.payload.(string); ok {108			g.uuid = uuid109		} else {110			return "", fmt.Errorf("%s command replied with an invalid payload", cmdUUID)111		}112	case <-time.After(timeout):113		return "", fmt.Errorf("Node is not responding to %s command", cmdUUID)114	}115	return g.uuid, nil116}117// Name returns our node name, after successful initialization.118// By default is taken from the UUID and shortened.119func (g *Gyre) Name() string {120	name, err := g.nodeName()121	if err != nil {122		log.Println(err)123	}124	return name125}126func (g *Gyre) nodeName() (string, error) {127	if g.name != "" {128		return g.name, nil129	}130	select {131	case g.cmds <- &cmd{cmd: cmdName}:132	case <-time.After(timeout):133		return "", fmt.Errorf("Node is not responding to %s command", cmdName)134	}135	select {136	case r := <-g.replies:137		if out, ok := r.(*reply); ok && out.err != nil {138			return "", fmt.Errorf("%s command replied with an invalid reply", cmdName)139		} else if name, ok := out.payload.(string); ok {140			g.name = name141		} else {142			return "", fmt.Errorf("%s command replied with an invalid payload", cmdName)143		}144	case <-time.After(timeout):145		return "", fmt.Errorf("Node is not responding to %s command", cmdName)146	}147	return g.name, nil148}149// Addr returns our address. Note that it will return empty string150// if called before Start() method.151func (g *Gyre) Addr() (string, error) {152	if g.addr != "" {153		return g.addr, nil154	}155	select {156	case g.cmds <- &cmd{cmd: cmdAddr}:157	case <-time.After(timeout):158		return "", fmt.Errorf("Node is not responding to %s command", cmdAddr)159	}160	select {161	case r := <-g.replies:162		if out, ok := r.(*reply); ok && out.err != nil {163			return "", fmt.Errorf("%s command replied with an invalid reply", cmdAddr)164		} else if addr, ok := out.payload.(string); ok {165			g.addr = addr166		} else {167			return "", fmt.Errorf("%s command replied with an invalid payload", cmdAddr)168		}169	case <-time.After(timeout):170		return "", fmt.Errorf("Node is not responding to %s command", cmdAddr)171	}172	return g.addr, nil173}174// Header returns specified header175func (g *Gyre) Header(key string) (string, bool) {176	if header, ok := g.headers[key]; ok {177		return header, ok178	}179	select {180	case g.cmds <- &cmd{cmd: cmdHeader, key: key}:181	case <-time.After(timeout):182		log.Printf("Node is not responding to %s command", cmdSetHeader)183		return "", false184	}185	select {186	case r := <-g.replies:187		if out, ok := r.(*reply); ok && out.err != nil {188			log.Println(out.err)189			return "", false190		} else {191			header, ok := out.payload.(string)192			g.headers[key] = header193			return header, ok194		}195	case <-time.After(timeout):196		log.Printf("Node is not responding to %s command", cmdSetHeader)197		return "", false198	}199	return "", false200}201// Headers returns headers202func (g *Gyre) Headers() (map[string]string, error) {203	select {204	case g.cmds <- &cmd{cmd: cmdHeaders}:205	case <-time.After(timeout):206		return nil, fmt.Errorf("Node is not responding to %s command", cmdHeaders)207	}208	select {209	case r := <-g.replies:210		if out, ok := r.(*reply); !ok {211			return nil, fmt.Errorf("%s command replied with an invalid reply", cmdHeaders)212		} else if headers, ok := out.payload.(map[string]string); ok {213			return headers, nil214		}215		return nil, fmt.Errorf("%s command replied with an invalid payload", cmdHeaders)216	case <-time.After(timeout):217		return nil, fmt.Errorf("Node is not responding to %s command", cmdHeaders)218	}219	return nil, nil220}221// SetName sets node name; this is provided to other nodes during discovery.222// If you do not set this, the UUID is used as a basis.223func (g *Gyre) SetName(name string) error {224	select {225	case g.cmds <- &cmd{cmd: cmdSetName, payload: name}:226	case <-time.After(timeout):227		return fmt.Errorf("Node is not responding to %s command", cmdSetName)228	}229	return nil230}231// SetHeader sets node header; these are provided to other nodes during discovery232// and come in each ENTER message.233func (g *Gyre) SetHeader(name string, format string, args ...interface{}) error {234	payload := fmt.Sprintf(format, args...)235	select {236	case g.cmds <- &cmd{cmd: cmdSetHeader, key: name, payload: payload}:237	case <-time.After(timeout):238		return fmt.Errorf("Node is not responding to %s command", cmdSetHeader)239	}240	return nil241}242// SetVerbose sets verbose mode; this tells the node to log all traffic as well243// as all major events.244func (g *Gyre) SetVerbose() error {245	select {246	case g.cmds <- &cmd{cmd: cmdSetVerbose, payload: true}:247	case <-time.After(timeout):248		return fmt.Errorf("Node is not responding to %s command", cmdSetVerbose)249	}250	return nil251}252// SetPort sets ZRE discovery port; defaults to 5670, this call overrides that253// so you can create independent clusters on the same network, for e.g254// development vs production.255func (g *Gyre) SetPort(port int) error {256	select {257	case g.cmds <- &cmd{cmd: cmdSetPort, payload: port}:258	case <-time.After(timeout):259		return fmt.Errorf("Node is not responding to %s command", cmdSetPort)260	}261	return nil262}263// SetInterval sets ZRE discovery interval. Default is instant beacon264// exploration followed by pinging every 1,000 msecs.265func (g *Gyre) SetInterval(interval time.Duration) error {266	select {267	case g.cmds <- &cmd{cmd: cmdSetInterval, payload: interval}:268	case <-time.After(timeout):269		return fmt.Errorf("Node is not responding to %s command", cmdSetInterval)270	}271	return nil272}273// SetInterface sets network interface to use for beacons and interconnects. If you274// do not set this, Gyre will choose an interface for you. On boxes275// with multiple interfaces you really should specify which one you276// want to use, or strange things can happen.277func (g *Gyre) SetInterface(iface string) error {278	select {279	case g.cmds <- &cmd{cmd: cmdSetIface, payload: iface}:280	case <-time.After(timeout):281		return fmt.Errorf("Node is not responding to %s command", cmdSetIface)282	}283	return nil284}285// SetEndpoint sets the endpoint. By default, Gyre binds to an ephemeral TCP286// port and broadcasts the local host name using UDP beaconing. When you call287// this method, Gyre will use gossip discovery instead of UDP beaconing. You288// MUST set-up the gossip service separately using GossipBind() and289// GossipConnect(). Note that the endpoint MUST be valid for both bind and290// connect operations. You can use inproc://, ipc://, or tcp:// transports291// (for tcp://, use an IP address that is meaningful to remote as well as292// local nodes).293func (g *Gyre) SetEndpoint(endpoint string) error {294	select {295	case g.cmds <- &cmd{cmd: cmdSetEndpoint, payload: endpoint}:296	case <-time.After(timeout):297		return fmt.Errorf("Node is not responding to %s command", cmdSetEndpoint)298	}299	select {300	case r := <-g.replies:301		if out, ok := r.(*reply); ok && out.err != nil {302			return out.err303		} else if !ok {304			return fmt.Errorf("%s command replied with an invalid payload", cmdSetEndpoint)305		}306	case <-time.After(timeout):307		return fmt.Errorf("Node is not responding to %s command", cmdSetEndpoint)308	}309	return nil310}311// GossipBind Sets up gossip discovery of other nodes. At least one node in312// the cluster must bind to a well-known gossip endpoint, so other nodes313// can connect to it. Note that gossip endpoints are completely distinct314// from Gyre node endpoints, and should not overlap (they can use the same315// transport).316func (g *Gyre) GossipBind(endpoint string) error {317	select {318	case g.cmds <- &cmd{cmd: cmdGossipBind, payload: endpoint}:319	case <-time.After(timeout):320		return fmt.Errorf("Node is not responding to %s command", cmdGossipBind)321	}322	select {323	case r := <-g.replies:324		if out, ok := r.(*reply); ok && out.err != nil {325			return out.err326		} else if !ok {327			return fmt.Errorf("%s command replied with an invalid payload", cmdGossipBind)328		}329	case <-time.After(timeout):330		return fmt.Errorf("Node is not responding to %s command", cmdGossipBind)331	}332	return nil333}334// GossipPort returns the port number that gossip engine is bound to335func (g *Gyre) GossipPort() (string, error) {336	select {337	case g.cmds <- &cmd{cmd: cmdGossipPort}:338	case <-time.After(timeout):339		return "", fmt.Errorf("Node is not responding to %s command", cmdGossipPort)340	}341	select {342	case r := <-g.replies:343		if out, ok := r.(*reply); ok && out.err != nil {344			return "", out.err345		} else if !ok {346			return "", fmt.Errorf("%s command replied with an invalid reply", cmdGossipPort)347		} else if p, ok := out.payload.(string); ok {348			return p, nil349		}350		return "", fmt.Errorf("%s command replied with an invalid payload", cmdGossipPort)351	case <-time.After(timeout):352		return "", fmt.Errorf("Node is not responding to %s command", cmdGossipPort)353	}354	return "", nil355}356// GossipConnect Sets up gossip discovery of other nodes. A node may connect357// to multiple other nodes, for redundancy paths.358func (g *Gyre) GossipConnect(endpoint string) error {359	select {360	case g.cmds <- &cmd{cmd: cmdGossipConnect, payload: endpoint}:361	case <-time.After(timeout):362		return fmt.Errorf("Node is not responding to %s command", cmdGossipConnect)363	}364	select {365	case r := <-g.replies:366		if out, ok := r.(*reply); ok && out.err != nil {367			return out.err368		} else if !ok {369			return fmt.Errorf("%s command replied with an invalid payload", cmdGossipConnect)370		}371	case <-time.After(timeout):372		return fmt.Errorf("Node is not responding to %s command", cmdGossipConnect)373	}374	return nil375}376// Start starts a node, after setting header values. When you start a node it377// begins discovery and connection. Returns nil if OK, and error if378// it wasn't possible to start the node.379func (g *Gyre) Start() error {380	select {381	case g.cmds <- &cmd{cmd: cmdStart}:382	case <-time.After(timeout):383		return fmt.Errorf("Node is not responding to %s command", cmdStart)384	}385	select {386	case r := <-g.replies:387		if out, ok := r.(*reply); ok && out.err != nil {388			return out.err389		} else if !ok {390			return fmt.Errorf("%s command replied with an invalid payload", cmdStart)391		}392	case <-time.After(timeout):393		return fmt.Errorf("Node is not responding to %s command", cmdStart)394	}395	return nil396}397// Stop stops a node; this signals to other peers that this node will go away.398// This is polite; however you can also just destroy the node without399// stopping it.400func (g *Gyre) Stop() error {401	select {402	case g.cmds <- &cmd{cmd: cmdStop}:403	case <-time.After(timeout):404		return fmt.Errorf("Node is not responding to %s command", cmdStop)405	}406	select {407	case <-g.replies:408	case <-time.After(20 * time.Millisecond):409		return fmt.Errorf("Node is not responding to %s command", cmdStop)410	}411	return nil412}413// Join a named group; after joining a group you can send messages to414// the group and all Gyre nodes in that group will receive them.415func (g *Gyre) Join(group string) error {416	select {417	case g.cmds <- &cmd{cmd: cmdJoin, key: group}:418	case <-time.After(timeout):419		return fmt.Errorf("Node is not responding to %s command", cmdJoin)420	}421	return nil422}423// Leave a group.424func (g *Gyre) Leave(group string) error {425	select {426	case g.cmds <- &cmd{cmd: cmdLeave, key: group}:427	case <-time.After(timeout):...

exec.go

Source:exec.go

...66	SysProcAttr *syscall.SysProcAttr67	// Process is the underlying process, once started.68	Process *os.Process69	// ProcessState contains information about an exited process,70	// available after a call to Wait or Run.71	ProcessState *os.ProcessState72	err             error // last error (from LookPath, stdin, stdout, stderr)73	finished        bool  // when Wait was called74	childFiles      []*os.File75	closeAfterStart []io.Closer76	closeAfterWait  []io.Closer77	goroutine       []func() error78	errch           chan error // one send per goroutine79}80// Command returns the Cmd struct to execute the named program with81// the given arguments.82//83// It sets Path and Args in the returned structure and zeroes the84// other fields.85//86// If name contains no path separators, Command uses LookPath to87// resolve the path to a complete name if possible. Otherwise it uses88// name directly.89//90// The returned Cmd's Args field is constructed from the command name91// followed by the elements of arg, so arg should not include the92// command name itself. For example, Command("echo", "hello")93func Command(name string, arg ...string) *Cmd {94	aname, err := LookPath(name)95	if err != nil {96		aname = name97	}98	return &Cmd{99		Path: aname,100		Args: append([]string{name}, arg...),101		err:  err,102	}103}104// interfaceEqual protects against panics from doing equality tests on105// two interfaces with non-comparable underlying types106func interfaceEqual(a, b interface{}) bool {107	defer func() {108		recover()109	}()110	return a == b111}112func (c *Cmd) envv() []string {113	if c.Env != nil {114		return c.Env115	}116	return os.Environ()117}118func (c *Cmd) argv() []string {119	if len(c.Args) > 0 {120		return c.Args121	}122	return []string{c.Path}123}124func (c *Cmd) stdin() (f *os.File, err error) {125	if c.Stdin == nil {126		f, err = os.Open(os.DevNull)127		if err != nil {128			return129		}130		c.closeAfterStart = append(c.closeAfterStart, f)131		return132	}133	if f, ok := c.Stdin.(*os.File); ok {134		return f, nil135	}136	pr, pw, err := os.Pipe()137	if err != nil {138		return139	}140	c.closeAfterStart = append(c.closeAfterStart, pr)141	c.closeAfterWait = append(c.closeAfterWait, pw)142	c.goroutine = append(c.goroutine, func() error {143		_, err := io.Copy(pw, c.Stdin)144		if err1 := pw.Close(); err == nil {145			err = err1146		}147		return err148	})149	return pr, nil150}151func (c *Cmd) stdout() (f *os.File, err error) {152	return c.writerDescriptor(c.Stdout)153}154func (c *Cmd) stderr() (f *os.File, err error) {155	if c.Stderr != nil && interfaceEqual(c.Stderr, c.Stdout) {156		return c.childFiles[1], nil157	}158	return c.writerDescriptor(c.Stderr)159}160func (c *Cmd) writerDescriptor(w io.Writer) (f *os.File, err error) {161	if w == nil {162		f, err = os.OpenFile(os.DevNull, os.O_WRONLY, 0)163		if err != nil {164			return165		}166		c.closeAfterStart = append(c.closeAfterStart, f)167		return168	}169	if f, ok := w.(*os.File); ok {170		return f, nil171	}172	pr, pw, err := os.Pipe()173	if err != nil {174		return175	}176	c.closeAfterStart = append(c.closeAfterStart, pw)177	c.closeAfterWait = append(c.closeAfterWait, pr)178	c.goroutine = append(c.goroutine, func() error {179		_, err := io.Copy(w, pr)180		return err181	})182	return pw, nil183}184func (c *Cmd) closeDescriptors(closers []io.Closer) {185	for _, fd := range closers {186		fd.Close()187	}188}189// Run starts the specified command and waits for it to complete.190//191// The returned error is nil if the command runs, has no problems192// copying stdin, stdout, and stderr, and exits with a zero exit193// status.194//195// If the command fails to run or doesn't complete successfully, the196// error is of type *ExitError. Other error types may be197// returned for I/O problems.198func (c *Cmd) Run() error {199	if err := c.Start(); err != nil {200		return err201	}202	return c.Wait()203}204// Start starts the specified command but does not wait for it to complete.205func (c *Cmd) Start() error {206	if c.err != nil {207		c.closeDescriptors(c.closeAfterStart)208		c.closeDescriptors(c.closeAfterWait)209		return c.err210	}211	if c.Process != nil {212		return errors.New("exec: already started")213	}214	type F func(*Cmd) (*os.File, error)215	for _, setupFd := range []F{(*Cmd).stdin, (*Cmd).stdout, (*Cmd).stderr} {216		fd, err := setupFd(c)217		if err != nil {218			c.closeDescriptors(c.closeAfterStart)219			c.closeDescriptors(c.closeAfterWait)220			return err221		}222		c.childFiles = append(c.childFiles, fd)223	}224	c.childFiles = append(c.childFiles, c.ExtraFiles...)225	var err error226	c.Process, err = os.StartProcess(c.Path, c.argv(), &os.ProcAttr{227		Dir:   c.Dir,228		Files: c.childFiles,229		Env:   c.envv(),230		Sys:   c.SysProcAttr,231	})232	if err != nil {233		c.closeDescriptors(c.closeAfterStart)234		c.closeDescriptors(c.closeAfterWait)235		return err236	}237	c.closeDescriptors(c.closeAfterStart)238	c.errch = make(chan error, len(c.goroutine))239	for _, fn := range c.goroutine {240		go func(fn func() error) {241			c.errch <- fn()242		}(fn)243	}244	return nil245}246// An ExitError reports an unsuccessful exit by a command.247type ExitError struct {248	*os.ProcessState249}250func (e *ExitError) Error() string {251	return e.ProcessState.String()252}253// Wait waits for the command to exit.254// It must have been started by Start.255//256// The returned error is nil if the command runs, has no problems257// copying stdin, stdout, and stderr, and exits with a zero exit258// status.259//260// If the command fails to run or doesn't complete successfully, the261// error is of type *ExitError. Other error types may be262// returned for I/O problems.263func (c *Cmd) Wait() error {264	if c.Process == nil {265		return errors.New("exec: not started")266	}267	if c.finished {268		return errors.New("exec: Wait was already called")269	}270	c.finished = true271	state, err := c.Process.Wait()272	c.ProcessState = state273	var copyError error274	for _ = range c.goroutine {275		if err := <-c.errch; err != nil && copyError == nil {276			copyError = err277		}278	}279	c.closeDescriptors(c.closeAfterWait)280	if err != nil {281		return err282	} else if !state.Success() {283		return &ExitError{state}284	}285	return copyError286}287// Output runs the command and returns its standard output.288func (c *Cmd) Output() ([]byte, error) {289	if c.Stdout != nil {290		return nil, errors.New("exec: Stdout already set")291	}292	var b bytes.Buffer293	c.Stdout = &b294	err := c.Run()295	return b.Bytes(), err296}297// CombinedOutput runs the command and returns its combined standard298// output and standard error.299func (c *Cmd) CombinedOutput() ([]byte, error) {300	if c.Stdout != nil {301		return nil, errors.New("exec: Stdout already set")302	}303	if c.Stderr != nil {304		return nil, errors.New("exec: Stderr already set")305	}306	var b bytes.Buffer307	c.Stdout = &b308	c.Stderr = &b309	err := c.Run()310	return b.Bytes(), err311}312// StdinPipe returns a pipe that will be connected to the command's313// standard input when the command starts.314// The pipe will be closed automatically after Wait sees the command exit.315// A caller need only call Close to force the pipe to close sooner.316// For example, if the command being run will not exit until standard input317// is closed, the caller must close the pipe.318func (c *Cmd) StdinPipe() (io.WriteCloser, error) {319	if c.Stdin != nil {320		return nil, errors.New("exec: Stdin already set")321	}322	if c.Process != nil {323		return nil, errors.New("exec: StdinPipe after process started")324	}325	pr, pw, err := os.Pipe()326	if err != nil {327		return nil, err328	}329	c.Stdin = pr330	c.closeAfterStart = append(c.closeAfterStart, pr)331	wc := &closeOnce{File: pw}332	c.closeAfterWait = append(c.closeAfterWait, wc)333	return wc, nil334}335type closeOnce struct {336	*os.File337	close    sync.Once338	closeErr error339}340func (c *closeOnce) Close() error {341	c.close.Do(func() {342		c.closeErr = c.File.Close()343	})344	return c.closeErr345}346// StdoutPipe returns a pipe that will be connected to the command's347// standard output when the command starts.348//349// Wait will close the pipe after seeing the command exit, so most callers350// need not close the pipe themselves; however, an implication is that351// it is incorrect to call Wait before all reads from the pipe have completed.352// For the same reason, it is incorrect to call Run when using StdoutPipe.353// See the example for idiomatic usage.354func (c *Cmd) StdoutPipe() (io.ReadCloser, error) {355	if c.Stdout != nil {356		return nil, errors.New("exec: Stdout already set")357	}358	if c.Process != nil {359		return nil, errors.New("exec: StdoutPipe after process started")360	}361	pr, pw, err := os.Pipe()362	if err != nil {363		return nil, err364	}365	c.Stdout = pw366	c.closeAfterStart = append(c.closeAfterStart, pw)367	c.closeAfterWait = append(c.closeAfterWait, pr)368	return pr, nil369}370// StderrPipe returns a pipe that will be connected to the command's371// standard error when the command starts.372//373// Wait will close the pipe after seeing the command exit, so most callers374// need not close the pipe themselves; however, an implication is that375// it is incorrect to call Wait before all reads from the pipe have completed.376// For the same reason, it is incorrect to use Run when using StderrPipe.377// See the StdoutPipe example for idiomatic usage.378func (c *Cmd) StderrPipe() (io.ReadCloser, error) {379	if c.Stderr != nil {380		return nil, errors.New("exec: Stderr already set")381	}382	if c.Process != nil {383		return nil, errors.New("exec: StderrPipe after process started")384	}385	pr, pw, err := os.Pipe()386	if err != nil {387		return nil, err388	}389	c.Stderr = pw390	c.closeAfterStart = append(c.closeAfterStart, pw)391	c.closeAfterWait = append(c.closeAfterWait, pr)392	return pr, nil393}...

after

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("ls", "-l")4	stdout, err := cmd.Output()5	if err != nil {6		fmt.Println(err.Error())7	}8	fmt.Println(string(stdout))9}10import (11func main() {12	cmd := exec.Command("ls", "-l")13	stdout, err := cmd.Output()14	if err != nil {15		fmt.Println(err.Error())16	}17	fmt.Println(string(stdout))18}19import (20func main() {21	cmd := exec.Command("ls", "-l")22	stdout, err := cmd.Output()23	if err != nil {24		fmt.Println(err.Error())25	}26	fmt.Println(string(stdout))27}28import (29func main() {30	cmd := exec.Command("ls", "-l")31	stdout, err := cmd.Output()32	if err != nil {33		fmt.Println(err.Error())34	}35	fmt.Println(string(stdout))36}37import (38func main() {39	cmd := exec.Command("ls", "-l")40	stdout, err := cmd.Output()41	if err != nil {42		fmt.Println(err.Error())43	}44	fmt.Println(string(stdout))45}46import (47func main() {48	cmd := exec.Command("ls", "-l")49	stdout, err := cmd.Output()50	if err != nil {51		fmt.Println(err.Error())52	}53	fmt.Println(string(stdout))54}55import (56func main() {57	cmd := exec.Command("ls", "-l")58	stdout, err := cmd.Output()59	if err != nil {60		fmt.Println(err.Error())61	}62	fmt.Println(string

after

Using AI Code Generation

1import (2func main() {3    cmd := exec.Command("ls", "-ltr")4    out, err := cmd.Output()5    if err != nil {6        fmt.Println(err.Error())7    }8    fmt.Println("Command Successfully Executed")9    output := string(out[:])10    fmt.Println(output)11}12import (13func main() {14    cmd := exec.Command("ls", "-ltr")15    out, err := cmd.CombinedOutput()16    if err != nil {17        fmt.Println(err.Error())18    }19    fmt.Println("Command Successfully Executed")20    output := string(out[:])21    fmt.Println(output)22}23import (24func main() {25    cmd := exec.Command("ls", "-ltr")26    err := cmd.Run()27    if err != nil {28        fmt.Println(err.Error())29    }30    fmt.Println("Command Successfully Executed")31}32import (33func main() {34    cmd := exec.Command("ls", "-ltr")35    err := cmd.Start()36    if err != nil {37        fmt.Println(err.Error())38    }39    fmt.Println("Command Successfully Executed")40}41import (42func main() {43    cmd := exec.Command("ls", "-ltr")44    err := cmd.Start()45    if err != nil {46        fmt.Println(err.Error())47    }48    err = cmd.Wait()49    if err != nil {50        fmt.Println(err.Error())51    }52    fmt.Println("Command Successfully Executed")53}54import (55func main() {56    cmd := exec.Command("ls", "-ltr")57    err := cmd.Run()58    if err != nil {59        fmt.Println("Error: The

after

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(out.String())18}19import (20func main() {21	cmd := exec.Command("ls", "-l")22	out, err := cmd.CombinedOutput()23	if err != nil {24		fmt.Println(err)25	}26	fmt.Println(string(out))27}28import (29func main() {30	cmd := exec.Command("ls", "-l")31	out, err := cmd.CombinedOutput()32	if err != nil {33		fmt.Println(err)34	}35	fmt.Println(string(out))36}37import (38func main() {39	cmd := exec.Command("ls", "-l")40	err := cmd.Run()41	if err != nil {42		fmt.Println(err)43	}44	fmt.Println(out.String())45}46import (47func main() {48	cmd := exec.Command("ls", "-l")49	out, err := cmd.CombinedOutput()50	if err != nil {51		fmt.Println(err)52	}53	fmt.Println(string(out))54}55import (56func main() {57	cmd := exec.Command("ls", "-l")58	err := cmd.Run()59	if err != nil {

after

Using AI Code Generation

1import (2func main() {3 cmd := exec.Command("dir")4 err := cmd.Run()5 if err != nil {6 fmt.Println(err)7 }8}

after

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	out, err := cmd.CombinedOutput()14	if err != nil {15		fmt.Println(err)16	}17	fmt.Println(string(out))18}19import (20func main() {21	cmd := exec.Command("ls", "-l")22	err := cmd.Run()23	if err != nil {24		fmt.Println(err)25	}26}27import (28func main() {29	cmd := exec.Command("ls", "-l")30	err := cmd.Start()31	if err != nil {32		fmt.Println(err)33	}34}35import (36func main() {37	cmd := exec.Command("ls", "-l")38	err := cmd.Wait()39	if err != nil {40		fmt.Println(err)41	}42}43import (44func main() {45	cmd := exec.Command("ls", "-l")46	err := cmd.Process()47	if err != nil {48		fmt.Println(err)49	}50}51import (52func main() {53	cmd := exec.Command("ls", "-l")54	err := cmd.ProcessState()55	if err != nil {

after

Using AI Code Generation

1import (2func main() {3	out, err := cmd.Output()4	if err != nil {5		fmt.Println(err)6	}7	fmt.Println(string(out))8}9import (10func main() {11	out, err := cmd.Output()12	if err != nil {13		fmt.Println(err)14	}15	fmt.Println(string(out))16}17import (18func main() {

after

Using AI Code Generation

1import (2func main() {3	fmt.Println("Go Exec")4	cmd := exec.Command("go", "run", "2.go")5	cmd.Dir = filepath.Join("C:\\Users\\saini\\Documents\\GoLang\\goexec")6	err := cmd.Run()7	if err != nil {8		fmt.Println("Error ", err)9	}10}11import (12func main() {13	fmt.Println("Go Exec")14	cmd := exec.Command("go", "run", "3.go")15	cmd.Dir = filepath.Join("C:\\Users\\saini\\Documents\\GoLang\\goexec")16	err := cmd.Run()17	if err != nil {18		fmt.Println("Error ", err)19	}20}21import (22func main() {23	fmt.Println("Go Exec")24	cmd := exec.Command("go", "run", "4.go")25	cmd.Dir = filepath.Join("C:\\Users\\saini\\Documents\\GoLang\\goexec")26	err := cmd.Run()27	if err != nil {28		fmt.Println("Error ", err)29	}30}31import (32func main() {33	fmt.Println("Go Exec")34	cmd := exec.Command("go", "run", "5.go")35	cmd.Dir = filepath.Join("C:\\Users\\saini\\Documents\\GoLang\\goexec")36	err := cmd.Run()37	if err != nil {38		fmt.Println("Error ", err)39	}40}41import (42func main() {43	fmt.Println("Go

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.