Key Combination of "Ctrl +"

Key combination	Microsoft Windows/KDE/GNOME
Ctrl+A	Select all
Ctrl+B	Bold
Ctrl+C	Copy
Ctrl+D	Font window (word processing); Add to bookmarks (Browsers)
Ctrl+E	Center alignment (word processing)
Ctrl+F	Find (usually a small piece of text in a larger document)
Ctrl+G	Go to (line number)
Ctrl+H	Replace; History
Ctrl+I	Italic; Incremental search
Ctrl+J	Justify
Ctrl+K	Insert hyperlink (word processing)
Ctrl+L	Create list; Left align (word processing)
Ctrl+M	Decrease margin by 1/2 inch (word processing)
Ctrl+N	New (window, document, etc.)
Ctrl+O	Open
Ctrl+P	Print
Ctrl+Q	Quit application
Ctrl+R	Refresh page; Right align (word processing)
Ctrl+S	Save
Ctrl+T	Open new tab
Ctrl+U	Underline
Ctrl+V	Paste
Ctrl+W	Close window or tab
Ctrl+X	Cut
Ctrl+Y	Redo
Ctrl+Z	Undo
Ctrl+⇧ Shift+Z	Redo
Ctrl+[	Decrease font size
Ctrl+]	Increase font size
Ctrl+=	Toggle font subscript
Ctrl+⇧ Shift+=	Toggle font superscript
Ctrl+End	Bottom (end of document or window)
Ctrl+Home	Top (start of document or window)
Ctrl+Insert	Copy
Ctrl+PgDn	Next tab
Ctrl+PgUp	Previous tab
Ctrl+Tab ↹	Next window or tab
Ctrl+⇧ Shift+Tab ↹	Previous window or tab
Ctrl+←	Previous word
Ctrl+→	Next word
Ctrl+Delete	Delete next word
Ctrl+← Backspace	Delete previous word
Ctrl+Alt+← Backspace	Restart X11
Ctrl+Alt+↑	Rotate screen upside down
Ctrl+Alt+↓	Rotate screen right side up
Ctrl+Alt+←	Rotate screen left
Ctrl+Alt+→	Rotate screen right
Ctrl+⇧ Shift+Esc	Open task manager
Ctrl+Alt+Del	Reboot; Open task manager or session options