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spark is a shell script that takes a list of numbers (comma-delimited, spaces, whatever you’d like) and outputs an histogram using unicode characters.
$ spark 0 30 55 80 33 150
▁▂▃▅▂▇
by mlb
14 years ago
18 Mar 12
17 Mar 12
This introduction to text manipulation on UNIX platforms provides an overview of some common commands widely available and installed standard on most UNIX-based releases.