This post has been migrated and imported into different systems over the years, I have not had a chance to format this post manually so it may be hard to read but I have left it here as a reference.
So tonight I was editing a large sql file, a few million lines and the import got stuck about half way through. The easiest solution would be to edit the sql dump and I needed a quick way to remove half the text in the file. At first I tried finding the line and manually selecting the lines but realized that it would take forever. So how in the world do I make large selections quickly?
Thats when I headed to Google to find the best way of doing this. After a bit of searching I stubled across a thread called Large Selection/Highlight or Select Range by Line Number. With a nice answer regarding markers in Sublime.
So basically all you have to do is scroll to the line where you want to make your selection from and click Edit->Mark->Set mark.
Then scroll to the line where you want your selection to go to and click Edit->Mark->Select to mark