How Can I Get the Absolute Path of My Go Executable?

Retrieving the Executable Path in Go

In Go, it is common to compile programs for multiple platforms and execute them by referencing a relative path or the binary's name if it resides in the PATH environment variable. However, there are instances when it is useful to ascertain the exact location of the executable.

To achieve this, Go 1.8 and later versions offer the os.Executable function, which returns the absolute path to the running executable.

Let's consider the program named "foo(.exe)" as an example. When run using different paths, such as ./foo, foo, or ../../subdir/subdir/foo, we can use the following code to determine the executable's location:

In this example, os.Executable() retrieves the absolute path to the executable, and path.Dir(ex) extracts the directory from that path. This allows us to access the directory where the program is located.

The result will be printed to the console, providing us with the required information about the executable's path.

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