Vim delete blank lines

Question

What command can I run to remove blank lines in Vim?

Answer 1

Found it, it's:

g/^\s*$/d

Answer 2

:g/^$/d

:g will execute a command on lines which match a regex. The regex is 'blank line' and the command is :d (delete)

Answer 3

:v/./d

or

:g/^$/d

or

:%!cat -s

Answer 4

How about:

:g/^[ \t]*$/d

Answer 5

The following can be used to remove only multi blank lines (reduce them to a single blank line) and leaving single blank lines intact:

:g/^\_$\n\_^$/d