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GVIM VI VIM GVIM empty GVIM Merge GVIM drop GVIM Num GVim duplicate GVIM time GVIM Make GVIM Markers GVIM spellcheck GVIM Syntax GVIM Reverse GVIM lines GVIM Intro
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How to reverse line order in gVIM? GVIM regular expression to reverse the order of lines in any block of text in a file is shown below.

Command to reverse order in entire file or global operation.
:g/^/m 0

 Let’s discuss it with an example of block of text starting at line 10 and going till line 20 end.  
Command,
:10,20g/^/ mo 10

 The operation is simply carried by moving every line in text file before the first line in the block.

In the command above
:g stands for :global - the commands to executed globally
/^ stands to match beginning of any line.
 /m stands for move in gvim
GVIM command to reverse line order.