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Full Discussion: Matching tables
Top Forums UNIX for Beginners Questions & Answers Matching tables Post 303042519 by RudiC on Friday 27th of December 2019 03:36:48 PM
Old 12-27-2019
Try also
Code:
awk '
NR==FNR {T[$2] = $1
         next
        }
        {L   = 1
         OUT = ""
         for (i=1; i<=4; i++)   {L = L * ($i in T)
                                 OUT = OUT T[$i] OFS $i ORS
                                }
         if (L) print OUT
        }
' file2 file1


or


Code:
sort file2 |  awk '
NR == FNR       {T[$0]
                 next
                }
                {OUT = OUT NRS $0
                 IX  = IX NFS $2
                 NFS = OFS
                 NRS = ORS
                }
!(FNR%4)        {if (IX in T) print OUT
                 OUT = IX = NFS = ""
                }
' file1 -

 

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