Command A = Select All
The keyboard shortcut is: Ctrl Shift *(asterisk)
That may vary from one program to another. It may also vary according to the language. Often it is Ctrl-A, but for a specific program (and language), just look for the "Select All" command in the menu - the shortcut key is usually displayed next to the command.
Select all
You should press CTRL+A to select the entire document text.
there isn't such shortcut
The Keyboard Shortcut To Save A Picture `Ctrl + s`
Shortcut keys
ctrl + a : select all
In the shortcut task pane
The keyboard shortcut for adding a bookmark in Safari or Firefox is Command (⌘) - D.
The Shortcut key can be used for selecting some commands. There are also many specific shortcut key combinations for commands and there are the Function keys.