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#command cdx join -k2.3,numeric $TMP/aaa $TMP/bbb #infile aaa aaa 3 ccc ddd 20 fff ggg 100 iii #infile bbb bbb DDD 3 ddd FFF 4 ggg III 50 hhh JJJ 100 #stdout aaa 3 ccc bbb DDD ggg 100 iii hhh JJJ