package standard library
Version: go1.18.3 Latest Latest

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Published: Jun 1, 2022 License: BSD-3-Clause Imports: 13 Imported by: 0



Package run implements the “go run” command.



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var CmdRun = &base.Command{
	UsageLine: "go run [build flags] [-exec xprog] package [arguments...]",
	Short:     "compile and run Go program",
	Long: `
Run compiles and runs the named main Go package.
Typically the package is specified as a list of .go source files from a single
directory, but it may also be an import path, file system path, or pattern
matching a single known package, as in 'go run .' or 'go run my/cmd'.

If the package argument has a version suffix (like @latest or @v1.0.0),
"go run" builds the program in module-aware mode, ignoring the go.mod file in
the current directory or any parent directory, if there is one. This is useful
for running programs without affecting the dependencies of the main module.

If the package argument doesn't have a version suffix, "go run" may run in
module-aware mode or GOPATH mode, depending on the GO111MODULE environment
variable and the presence of a go.mod file. See 'go help modules' for details.
If module-aware mode is enabled, "go run" runs in the context of the main

By default, 'go run' runs the compiled binary directly: 'a.out arguments...'.
If the -exec flag is given, 'go run' invokes the binary using xprog:
	'xprog a.out arguments...'.
If the -exec flag is not given, GOOS or GOARCH is different from the system
default, and a program named go_$GOOS_$GOARCH_exec can be found
on the current search path, 'go run' invokes the binary using that program,
for example 'go_js_wasm_exec a.out arguments...'. This allows execution of
cross-compiled programs when a simulator or other execution method is

The exit status of Run is not the exit status of the compiled binary.

For more about build flags, see 'go help build'.
For more about specifying packages, see 'go help packages'.

See also: go build.


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