英文:
How to run Go(lang) code directly from terminal/command line?
问题
我想直接从终端/命令行运行简单的Go代码。例如：
package mainfunc main() {println("hello")}
然而，Go语言只允许从文件中执行代码。所以也许有一些方法可以模拟它？像这样：
go run file.go < echo "...."
但在上述操作之后，不应该有任何文件残留。
英文:
I want to run simple go code directly from terminal/command line. For example:
go run "package mainfunc main() {println("hello")}"hello
However golang allows code execution only from file. So maybe there are some ways how to emulate it? Like this:
go run file.go < echo "...."
But there should be no files after actions above.
答案1
得分: 7
在命令行中，只有像go-repl这样的项目才能编译/运行多行Go源代码而不留下任何.go文件。另一个选择是gore：
$ gore输入一行或多行代码，然后按下ctrl-Dfunc test() string {return "hello";}println(test())^D---------------------------------hello
（其他类似repl的解决方案列在"Does Go provide REPL?"中）
或者你可以开发一个Go包装器，在内部创建一个源代码并运行它，然后再删除它。
英文:
In command-line, only a project like go-repl would compile/run a multi-line go source code without leaving any .go file behind.
An alternative: gore:
$ goreEnter one or more lines and hit ctrl-Dfunc test() string {return "hello"}println(test())^D---------------------------------hello
(Other repl-like solution are listed in "Does Go provide REPL?")
Or you would need to develop a go wrapper which would internally create a source code and go run it, before deleting it.
答案2
得分: 1
Ubuntu有一个名为gorun的工具，非常适合小型脚本。它可以即时编译脚本，并将二进制文件缓存到/tmp目录中。
尽管它的初衷是用于脚本编写而不是作为REPL（交互式解释器），但你可以以各种方式使用它。
虽然gorun来自Ubuntu社区，但由于它使用了纯净的Go源代码，所以它应该可以在任何Linux发行版上使用。
你可以通过以下命令获取gorun：
$ go get launchpad.net/gorun
英文:
Ubuntu has a gorun tool which works well for small scripts. It compiles scripts on the fly, caching the binaries in /tmp.
Although it's intended for scripting and not as a REPL, you could use it in various ways.
Although gorun has come from the Ubuntu community, it should work on any Linux distro because it uses vanilla Go source code via
$ go get launchpad.net/gorun
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