diff --git a/sources/tech/20180927 How to Use RAR files in Ubuntu Linux.md b/sources/tech/20180927 How to Use RAR files in Ubuntu Linux.md
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+HankChow translating
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 How to Use RAR files in Ubuntu Linux
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 [RAR][1] is a quite good archive file format. But, it isn’t the best when you’ve got 7-zip offering great compression ratios and Zip files being easily supported across multiple platforms by default. It is one of the most popular archive formats, but, [Ubuntu][2]‘s archive manager does not support extracting RAR files nor does it let you create RAR files.