问题
I've been given instructions to run go get <some-remote-git-repo> which seems to succeed, but it's not clear to me where the package was installed to so I can run an executable from it.
Per https://golang.org/doc/code.html#remote it seems it will be installed in $GOPATH/bin but $GOPATH isn't defined in my shell (though the go get command seems to work fine). Go is installed via Homebrew.
回答1:
I found the missing clue by running brew info go, which says:
==> Caveats
A valid GOPATH is required to use the `go get` command.
If $GOPATH is not specified, $HOME/go will be used by default:
https://golang.org/doc/code.html#GOPATH
From that I found the executable in question at $HOME/go/bin.
回答2:
If you run go get and you already have the package it says nothing (even with the -v option). This is confusing if it's not in the first directory of your GOPATH. Ie you run go get , there is no error or any message but when you check the first directory of the GOPATH (which is where the doc says it should be) you can't find it.
I eventually found it, but since I have a large GOPATH this was rather tedious.
来源：https://stackoverflow.com/questions/50633092/where-does-go-get-install-packages