VI Word processor in Linux

▲ VI three types of processing modes

General Mode ???? move the cursor, delete a single whole line of words, copy and paste ( ESC )

edit Mode ???? Input characters ( i o a r )

instruction Mode ???? Read storage file, search replace function ( : / ? )

▲ common commands in instruction mode

Set nu???????? Show Line Numbers

set Nonu???? Cancel Line number

: w???????? write the edited data to the drive file

: Q???????? Leave VI

: Wq???????? Save after leaving

: x???????? Save and launch

u???????? Restore the previous action

ctrl+r???????? Redo a previous action

: E!???????? Restore the archive to its original state

VI Word processor in Linux