There are different types of editor used to view the content of files. Some editors, such as vim or nano, require the whole file to be loaded into memory first. These types of editors are not suitable for working on or viewing the contents of large log files, such as banking database log files, since as opening such large files can cause issues due to high memory utilization. However, in such scenarios, you can use the less command to view the contents of a large file, page by page, by scrolling up or down without the system having to place the entire file in memory at the beginning. This is much faster then a text editor, such as vi or nano.