which

Cross-platform which command for locating executables in PATH.

Build

go build

which <program>

Prints the full path to the executable if found in PATH. Returns exit code 1 if not found.

$ which go
/usr/local/go/bin/go

$ which notepad
C:\Windows\System32\notepad.exe

On Windows, automatically searches for files with PATHEXT extensions (.exe, .bat, .cmd, etc.)
On Windows, also checks the current directory
On Unix, checks execute permissions

GPL-2.0