man-db note

鳥哥的私房菜

指令範例

$ man -a intro

執行

$ dpkg --get-selections | grep manpages

會顯示

manpages                                        install
manpages-dev                                    install
manpages-posix                                  install
manpages-posix-dev                              install

執行

$ dpkg -l | grep manpages

會顯示

ii  manpages                                                    3.54-1ubuntu1                              all          Manual pages about using a GNU/Linux system
ii  manpages-dev                                                3.54-1ubuntu1                              all          Manual pages about using GNU/Linux for development
ii  manpages-posix                                              2.16-1                                     all          Manual pages about using POSIX system
ii  manpages-posix-dev                                          2.16-1                                     all          Manual pages about using a POSIX system for development

執行

$ whatis

顯示

whatis what?

執行

$ man -f

顯示

whatis what?

執行

$ whatis intro

或是執行

$ man -f intro

顯示

intro (4)            - introduction to special files
intro (2)            - introduction to system calls
intro (8)            - introduction to administration and privileged commands
intro (5)            - introduction to file formats
intro (3)            - introduction to library functions
intro (6)            - introduction to games
intro (7)            - introduction to overview, conventions, and miscellany section
intro (1)            - introduction to user commands

執行

$ whatis intro | sort

或是執行

$ man -f intro | sort

顯示

intro (1)            - introduction to user commands
intro (2)            - introduction to system calls
intro (3)            - introduction to library functions
intro (4)            - introduction to special files
intro (5)            - introduction to file formats
intro (6)            - introduction to games
intro (7)            - introduction to overview, conventions, and miscellany section
intro (8)            - introduction to administration and privileged commands