dotf   string
		dotErr error
	)
	if _, found := syscall.Getenv("NoDefaultCurrentDirectoryInExePath"); !found {
		if f, err := findExecutable(filepath.Join(".", file), exts); err == nil {
			if execerrdot.Value() == "0" {
				execerrdot.IncNonDefault()
				return f, nil
			}
			dotf, dotErr = f, &Error{file, ErrDot}
		}
	}

	path := os.Getenv("path")
	for _, dir := range filepath.SplitList(path) {
		if dir == "" {

	for _, dir := range filepath.SplitList(path) {
		path := filepath.Join(dir, file)
		if err := findExecutable(path); err == nil {
			if !filepath.IsAbs(path) {
				if execerrdot.Value() != "0" {
					return path, &Error{file, ErrDot}
				}
				execerrdot.IncNonDefault()
			}
			return path, nil
		}
	}
	return "", &Error{file, ErrNotFound}
}

// lookExtensions is a no-op on non-Windows platforms, since

			dir = "."
		}
		path := filepath.Join(dir, file)
		if err := findExecutable(path); err == nil {
			if !filepath.IsAbs(path) {
				if execerrdot.Value() != "0" {
					return path, &Error{file, ErrDot}
				}
				execerrdot.IncNonDefault()
			}
			return path, nil
		}
	}
	return "", &Error{file, ErrNotFound}
}

// lookExtensions is a no-op on non-Windows platforms, since

	// Add "." to PATH so that exec.LookPath looks in the current directory on all systems.
	// And try to trick it with "../testdir" too.
	for _, errdot := range []string{"1", "0"} {
		t.Run("GODEBUG=execerrdot="+errdot, func(t *testing.T) {
			t.Setenv("GODEBUG", "execerrdot="+errdot+",execwait=2")
			for _, dir := range []string{".", "../testdir"} {
				t.Run(pathVar+"="+dir, func(t *testing.T) {
					t.Setenv(pathVar, dir+string(filepath.ListSeparator)+origPath)

// (Otherwise the test in this package will fail.)
var All = []Info{
	{Name: "asynctimerchan", Package: "time", Changed: 23, Old: "1", Opaque: true},
	{Name: "execerrdot", Package: "os/exec"},
	{Name: "gocachehash", Package: "cmd/go"},
	{Name: "gocachetest", Package: "cmd/go"},
	{Name: "gocacheverify", Package: "cmd/go"},
	{Name: "gotypesalias", Package: "go/types", Changed: 23, Old: "0"},

	// command completed, or no WaitDelay was set, or the WaitDelay already
	// expired and its effect was already applied.)
	timer *time.Timer
}

var execwait = godebug.New("#execwait")
var execerrdot = godebug.New("execerrdot")

// Command returns the [Cmd] struct to execute the named program with
// the given arguments.
//
// It sets only the Path and Args in the returned structure.
//

There is no plan to remove any of these settings.

### Go 1.19

Go 1.19 made it an error for path lookups to resolve to binaries in the current directory,
controlled by the [`execerrdot` setting](/pkg/os/exec#hdr-Executables_in_the_current_directory).
There is no plan to remove this setting.

### Go 1.18

Go 1.18 removed support for SHA1 in most X.509 certificates,

	/gc/stack/starting-size:bytes
		The stack size of new goroutines.

	/godebug/non-default-behavior/execerrdot:events
		The number of non-default behaviors executed by the os/exec
		package due to a non-default GODEBUG=execerrdot=... setting.

	/godebug/non-default-behavior/gocachehash:events
		The number of non-default behaviors executed by the cmd/go
		package due to a non-default GODEBUG=gocachehash=... setting.

	execProbe := &v1.Probe{
		ProbeHandler: v1.ProbeHandler{
			Exec: &v1.ExecAction{},
		},
	}
	tests := []struct {
		probe          *v1.Probe
		env            []v1.EnvVar
		execError      bool
		expectError    bool
		execResult     probe.Result
		expectedResult results.Result
		expectCommand  []string
	}{
		{ // No probe
			probe:          nil,
			expectedResult: results.Success,

pkg strconv, func QuoteToGraphic(string) string
pkg text/template, func IsTrue(interface{}) (bool, bool)
pkg text/template, method (ExecError) Error() string
pkg text/template, type ExecError struct
pkg text/template, type ExecError struct, Err error