cdx 0.1.21

Library and application for text file manipulation and command line data mining, a little like the gnu textutils
Documentation 
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#command cdx uniq -w last -k ,expr,one+two
#stdin
 CDX	one	two
1	2
2	1
3	2
4	1
5	1
#stdout
 CDX	one	two
2	1
4	1
5	1