D

[

address1

][

,



address2

]

D

Delete first part (up to embedded newline) of multi-line pattern space created by N command and resume editing with first command in script. If this command empties the pattern space, then a new line of input is read, as if the d had been executed.

Example

# Strip multiple blank lines, leaving only one:
/^$/{
N
/^\n$/D
}