✘ ~/GitHub/gowork/src/hello history | tail | grep GOOS
4299 GOOS=darwin GOARCH=amd64 go build -o hello_osx_amd64 hello.go
4300 GOOS=darwin GOARCH=386 go build -o hello_osx_386 hello.go
4301 GOOS=linux GOARCH=386 go build -o hello_linux_386 hello.go
4302 GOOS=linux GOARCH=amd64 go build -o hello_linux_amd64 hello.go
4308 history tail | grep GOOS
~/GitHub/gowork/src/hello file *
hello.go: c program text, ASCII text
hello_amd64.exe: PE32+ executable (console) x86-64 (stripped to external PDB), for MS Windows
hello_i386.exe: PE32 executable (console) Intel 80386 (stripped to external PDB), for MS Windows
hello_linux_386: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), statically linked, not stripped
hello_linux_amd64: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, not stripped
hello_osx_386: Mach-O executable i386
hello_osx_amd64: Mach-O 64-bit executable x86_64