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May 29, 2009

How To: Splitting large text files into smaller ones

Let’s say you have a huge text file with couple million lines. Now you want to split it up into 100, 200, or 300 line files. Bash makes it pretty easy with split.

In Bash:

split -l 500 file.txt

That splits up the file file.txt into 500 line chunks. What is produced are files such as xaa, xab, xac and so on.

Be sure to do man split for more options.