VIMscript: Performing Command Operations Twice

Introduction

Vim is a powerful text editor that is widely used by developers around the world. It is known for its extensive features and customizability, making it a popular choice for programmers who need a flexible and efficient tool for editing code. One of the key strengths of Vim is its support for command operations, which allow users to perform a wide range of tasks quickly and easily. In this article, we will explore how to perform command operations twice in Vim using the `.` command, with a focus on how this can be used to make backup copies of important files, such as a PHP script that was accidentally deleted.

Performing Command Operations Twice in Vim

The `.` command in Vim is used to repeat the last command that was entered. This can be a powerful tool for performing repetitive tasks quickly and efficiently, as it eliminates the need to manually enter the same command over and over again. For example, if you have just accidentally deleted a PHP script, and you want to make a backup copy of the file, you can use the `.` command to repeat the `:w` (write) command twice, like this:

This will write the contents of the current buffer to the `myscript.php` file, and then immediately write a backup copy of the file to `myscript_backup.php`. This is just one simple example of how the `.` command can be used to perform command operations twice in Vim. Let's take a look at some other examples that demonstrate the power and flexibility of this feature.

Repeating a Search

Another common use of the `.` command in Vim is to repeat a search. If you need to search for a particular piece of text multiple times, you can use the `/` command to perform the search, and then use the `.` command to repeat the search. For example:

This will perform the search for the word `delete` three times in a row, allowing you to quickly and easily find all occurrences of the word in your file.

Repeating a Substitution

The `.` command can also be used to repeat a substitution in Vim. If you need to replace a particular piece of text with something else multiple times, you can use the `:%s/old/new/g` command to perform the substitution globally, and then use the `.` command to repeat the substitution. For example:

This will replace all occurrences of the word `delete` with the word `remove` three times in a row, allowing you to quickly and easily make the necessary changes to your file.

In this article, we have explored the `.` command in Vim, which allows users to perform command operations twice with ease. This is a powerful and versatile feature that can be used in a wide range of situations, from making backup copies of important files to performing repetitive tasks quickly and efficiently. Whether you are a seasoned Vim user or just getting started, the `.` command is a valuable tool to have in your arsenal. With a little practice, you will be able to harness the power of this feature to streamline your workflow and get more done in less time.

References

• Vim Documentation
• Bash Reference Manual
• Emacs Repeating