Vim delete blank lines
我可以运行什么命令来删除Vim中的空行?
:g/^$/d
 :g will execute a command on lines which match a regex.  The regex is 'blank line' and the command is :d (delete)  
Found it, it's:
g/^s*$/d
Source: Power of g at vim wikia
:v/./d
or
:g/^$/d
or
:%!cat -s
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