Linux command
whatis 命令
文本
复制后可按需替换文件名、目录或参数。
常用示例
Example
whatis [command]
Example
whatis -l [command]
Example
whatis -w net*
Example
whatis -r 'wish[0-9]\.[0-9]'
Example
whatis -L en [command]
说明
whatis searches the manual page names and displays brief descriptions from the NAME section of matching man pages. It queries the whatis database, a cache of manual page descriptions built by mandb. The command is useful for quickly determining what a command does without reading the full manual page. Multiple commands can be queried at once, and pattern matching allows searching for groups of related commands.
参数
- -d, --debug
- Enable debug mode
- -l, --long
- Do not trim output to terminal width
- -r, --regex
- Interpret name as a regular expression
- -w, --wildcard
- Interpret name as a shell glob pattern
- -s _list_, --sections=_list_
- Search only specified manual sections
- -m _system_, --systems=_system_
- Search man pages from other systems
- -M _path_, --manpath=_path_
- Set manual page search path
- -L _locale_, --locale=_locale_
- Set locale for searching
- -v, --verbose
- Print verbose warning messages
FAQ
What is the whatis command used for?
whatis searches the manual page names and displays brief descriptions from the NAME section of matching man pages. It queries the whatis database, a cache of manual page descriptions built by mandb. The command is useful for quickly determining what a command does without reading the full manual page. Multiple commands can be queried at once, and pattern matching allows searching for groups of related commands.
How do I run a basic whatis example?
Run `whatis [command]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -d, --debug do in whatis?
Enable debug mode