Commands that are specific to the text editor are called text-editing commands because they perform editing functions in windows. Text-editing commands can be one of two types:

Most line commands rearrange or reformat text. They perform tasks such as moving, deleting, copying, and aligning lines or blocks of text. Command-line commands, in addition to rearranging and reformatting text, perform other tasks such as reversing the effects of commands or changing the default case of text.

This section describes commands that you can use in the UNIX environment, but that are not specific to UNIX. You can use these commands in any operating environment that supports text-editing commands.