.1 文件扩展名
Unix Section 1 Manual Page
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什么是 1 文件？
A 1 file contains a manual page (man page) accessible via the man utility, a Unix program used to view user manuals. It contains documentation for a Unix command. Each 1 file is a plain text file that is separated into several segments and delimited by standard markers.
更多信息
Level 1 user manuals describe general commands for the Unix operating system. Each level 1 user manual is stored in a file that bears the same name as the command it describes, followed by the .1 extension. For example, a manual describing the cmd_example command has the filename cmd_example.1.
Unix man page files are commonly compressed into .GZ files and have the .gz.1 compound extension. Unix man pages also use the .2 through .8 extensions for other sections. For example, the .2 extension is used for system calls documentation.
如何打开 1 文件
You can open a 1 file with the man utility included with most Unix systems. Since Unix man pages are stored in a plain text format, you can also open them in any text editor, such as Vim (Linux, Mac), Microsoft Notepad (Windows), and Apple TextEdit (Mac).