First, here are the shortcuts you should know when working in the code editor.
Left/Right (Arrow Key) go back/forward a character
Up/Down (Arrow Key) go up/down a line
Shift + Left/Right highlight previous/next character
Shift + Up/Down highlight to cursor’s new position on next line up/down
Ctrl + Left/Right go to start of previous/next word
Ctrl + Shift + Left/Right highlight to start of previous/next word
Home/End go to start/end of line
Shift + Home/End highlight to start/end of line
Ctrl + Home/End go to start/end of file
Ctrl + Shift + Home/End highlight to start/end of file
Ctrl + L go to Line you specify
Alt + Up/Down move current line up/down
Highlight lines + Tab indent selected lines
Highlight lines + Shift + Tab un-indent selected lines
Ctrl + 1 toggle whether a line is commented out
Ctrl + 4 format line into block comment
Ctrl + 5 undo block comment formatting
Backspace/Delete delete previous/next character
Ctrl + Backspace/Delete delete to start of previous/next word
Ctrl + D Delete line
Ctrl + Z undo
Ctrl + Shift + Z redo
Ctrl + X cut
Ctrl + C Copy
Ctrl + V paste
Ctrl + A highlight All
Ctrl + F Find text (Enter and Shift + Enter, or F3 and Shift + F3 to cycle matches)
Ctrl + R Replace text
Ctrl + Space code completion
Ctrl + I Inspect object (see info in help pane)
Ctrl + G Go to file and line where selected object is defined
Ctrl + Page Up/Page Down cycle to previous/next file
Ctrl + Shift + E switch to Editor pane
Ctrl + Shift + I switch to Ipython console pane
Ctrl + Shift + V switch to Variable explorer pane
Ctrl + Shift + H switch to Help pane
Ctrl + Shift + X switch to file eXplorer pane
Ctrl + = (or Ctrl + Mouse Wheel Forward) zoom in
Ctrl + - (or Ctrl + Mouse Wheel Back) zoom out
Ctrl + 0 zoom reset
F11 fullscreen mode
Ctrl + N open New file
Ctrl + O Open existing file
Ctrl + S Save current file
Ctrl + Shift + S Save current file as
Ctrl + Alt + S Save all open files
F5 run file
Highlight code + Ctrl + Enter run selected code
Ctrl + W close file
Ctrl + Shift + W close all files
Ctrl + Q Quit spyder