Vim

Info

Action	Shortcut
move cursor left	`h`
move cursor down	`j`
move cursor up	`k`
move cursor down	`l`
jump forward to the start of a word	`w`
jump forwards to the start of a word (words can contain punctuation)	`W`
jump forward to the end of a word	`e`
jump forwards to the end of a word (words can contain punctuation)	`E`
jump backwards to the start of a word	`b`
jump backwards to the start of a word (words can contain punctuation	`B`
jump to start of the line	`0`
jump to the end of line	`$`
go to the first line of the document	`gg`
go to the last line of the document	`G`
go to line 5	`5G`
page down	`ctrl+f`
page up	`ctrl+b`
search for pattern	`/pattern`
search backward for pattern	`?pattern`
repeat search in same direction	`n`
repeat search in opposite direction	`N`
jump to next x on line	`fx`
jump before next x on line	`tx`
jump to previous x on line	`Fx`
jump before previous x on line	`Tx`

Action	Shortcut
undo	`u`
redo	`ctrl+r`
insert before cursor	`i`
insert at the beginning of the line	`I`
append after the cursor	`a`
append at the end of the line	`A`
open a new line below the current line	`o`
open a new line above the current line	`O`
append at the end of the word	`ea`
append at the end of line	`$a`
exit insert mode	`Esc`
replace a single character	`r`
copy a line	`yy`
copy 2 lines	`2yy`
copy to end of line	`y$`
paste the clipboard after cursor	`p`
paste the clipboard before cursor	`P`
delete to the end of line	`d$`
cut to the end of line	`D`
delete all lines	`:%d`
write (save) the file, but don't exit	`:w`
write (save) and quit	`:wq` or `:x` or `ZZ`
quit and throw away unsaved changes	`:q!` or `ZQ`
write file as root but don't exit	`:w !sudo tee %`
replace all old with new throughout file	`:%s/old/new/g`
replace all old with new throughout file with confirmations	`:%s/old/new/gc`

Action	Shortcut
ascii to hex	`:%!xxd`
hex to ascii	`:%!xxd -r -p`