goimports:tldr:7c46e

The goimports command is a tool used in Go programming language to automatically organize and manage import statements in your Go code. It helps in maintaining a standardized format and resolving any missing or redundant imports.

The command goimports -w ${filename}.go is used to execute the goimports tool and apply its changes directly to the specified Go file. Here's a breakdown of the command components:

• goimports is the actual command.
• -w is an optional flag which specifies that the tool should overwrite the original file with the updated import statements. Without this flag, the tool would only display the changes without modifying the file.
• ${filename}.go is a placeholder for your actual Go file name. You need to replace it with the name of the file you want to run goimports on, including the .go file extension.

By executing this command, goimports analyzes the import statements in the given Go file, removes any unused imports, organizes the imports alphabetically, and adds any missing imports required by the code. The resulting changes are then directly written back to the same file, overwriting the original contents.