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Thread: awk script to compare and insert a line
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Old 11-22-2008
radoulov's Avatar
radoulov radoulov is offline Forum Staff  
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Join Date: Jan 2007
Location: Варна, България / Milano, Italia
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Given your sample data it seams that $4 will work fine.
Use nawk or /usr/xpg4/bin/awk on Solaris:


Code:
awk '/^1 / { s = $0 }
/^6 / && !t[$4]++ {
  c++ && $0 = s RS $0
  }1' infile