mao:~# whereis vi

vi: /usr/bin/vi /usr/share/vi /usr/share/man/man1/vi.1.gz

mao:~# whereis man

man: /usr/bin/man /usr/local/man /usr/share/man /usr/share/man/man1/man.1.gz /usr/share/man/man7/man.7.gz

mao:~# whereis yes

yes: /usr/bin/yes /usr/share/man/man1/yes.1.gz

mao:~# whereis echo

echo: /bin/echo /usr/share/man/man1/echo.1.gz

mao:~# whereis less

less: /usr/bin/less /usr/share/man/man1/less.1.gz

mao:~# whereis fcitx

fcitx: /usr/bin/fcitx /usr/share/fcitx



谁用谁知道:)