PWB1/usr/lib/quiz/editor

Append text after line 15:15a
Delete lines 12 through end:12,$d
Start editing a different file named `file':e file
Delete all blank (empty) lines:g/^$/d
Quit the editor:q
Set the file name to `abc':f abc
Determine the name of the current file name:f
Append the file `afile' at the end of the current file:{$}r afile
Write out the current file:w
Move lines 12 through a line containing `xyz' to the beginning:12,/xyz/m0
Regular Expression matching words that end with `ing':\[! \]*ing
Search upwards for the word `Now':?Now?
The address symbol for the current line:.
The RE character that stands for any character:.
The RE character that matches the beginning of a line:^
The RE character that matches the end of a line:$
The RE character class grouping symbols:\[\]
Insert new text above the current line:{.}i
Copy line 3 to be after line 15:3t15