linux & mysql shell shorcut - good for mobile ssh

Key Sequence	Meaning
Up arrow or Ctrl-P	Recall previous line
Down arrow or Ctrl-N	Recall next line
Left arrow or Ctrl-B	Move cursor left (backward)
Right arrow or Ctrl-F	Move cursor right (forward)
Escape b	Move backward one word
Escape f	Move forward one word
Ctrl-A	Move cursor to beginning of line
Ctrl-E	Move cursor to end of line
Ctrl-D	Delete character under cursor, Ctrl-U Clear the line before cursor position
Delete	Delete character to left of cursor
Escape D	Delete word
Escape Backspace	Delete word to left of cursor
Ctrl-K	Erase everything from cursor to end of line
Ctrl-_	Undo last change; may be repeated

Ctrl + Z Puts whatever you are running into a suspended background process. fg restores it.

Ctrl + R Let’s you search through previously used commands

Ctrl + U Clears the line before the cursor position. If you are at the end of the line, clears the entire line.

Ctrl + K Clear the line after the cursor