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 # Colmap
 
-- CLI program that takes tabular data as input and maps a random
-  command to each input column. 
+CLI program that takes tabular data as input and maps a random
+command to each input column. It works in a similar way to `awk` or `xargs` in
+that the input text is converted into fields and the user supplied
+commands are executed on each matched column (field)
+
 
 ## Example