I made a grep

 grep -w BG file.txt

on my configuration file which produces me an output as below 

 
DATABASE_NAME                  DB_ABB           DB_ID             DB_D
+IR
============================================================
DATA_ARCHIVE                   BDAT    -    -   BG      -         sas 
DATA_CORP                      BDAC    -    Y   BG      bg        sas 
DAATA_ARCHIVE                  BDAA    -    -   BG      -         hado
+op
DATA_CONS                      BDAC    -    -   BG      -         hado
+op
DATA_APPS                      BDAP    -    -   BG      ba        misc
+  
DATA_HISTORY                   BDAH    -    -   BG      -         hado
+op

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What I need to achieve now is, based on DB_ID column value "BG" (which i grep earlier) I need to print the DB_DIR unique values

output should be unique DB_DIR values as below

sas

hadoop

misc

Please advice

In reply to OT: Find unique values in a column by rahulme81

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