Nano Window: Various Cheat Sheet

Alt+ATurn the mark on/off
TabIndent marked region
Shift+Tab   Unindent marked region
Alt+NTurn line numbers on/off
Alt+PTurn visible whitespace on/off
Alt+VEnter next keystroke verbatim
Ctrl+LRefresh the screen
Ctrl+ZSuspend nano

Nano Window: Editing Cheat Sheet

Ctrl+K   Cut current line into cutbuffer
Alt+6Copy current line into cutbuffer
Ctrl+UPaste contents of cutbuffer
Alt+TCut until end of buffer
Ctrl+]Complete current word
Alt+3Comment/uncomment line/region
Alt+UUndo last action
Alt+ERedo last undone action

Nano Window: Moving around Cheat Sheet

Ctrl+B   One character backward
Ctrl+FOne character forward
Ctrl+One word backward
Ctrl+One word forward
Ctrl+ATo start of line
Ctrl+ETo end of line
Ctrl+POne line up
Ctrl+NOne line down
Ctrl+To previous block
Ctrl+To next block
Ctrl+YOne page up
Ctrl+VOne page down
Alt+\To top of buffer
Alt+/To end of buffer

Nano Window: Special movement Cheat Sheet

Alt+G    Go to specified line
Alt+]Go to complementary bracket
Alt+Scroll viewport up
Alt+Scroll viewport down
Alt+<Switch to preceding buffer
Alt+>Switch to succeeding buffer

Nano Window: Deletion Cheat Sheet

Ctrl+HDelete character before cursor      
Ctrl+DDelete character under cursor
Ctrl+Shift+Del   Delete word to the left
Ctrl+DelDelete word to the right
Alt+DelDelete current line

Nano Window: Operations Cheat Sheet

Ctrl+T   Run a spell check
Ctrl+JJustify paragraph or region
Alt+JJustify entire buffer
Alt+BRun a syntax check
Alt+FRun a formatter/fixer/arranger
Alt+:Start/stop recording of macro
Alt+;Replay macro