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Shell Programming and Scripting

awk experts please help

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Top Forums Shell Programming and Scripting awk experts please help
# 15  
Old 01-31-2013
Bipin can you please explain what this awk program actually does..hard to understand as individual..
# 16  
Old 01-31-2013
Code:
nawk '/PIN_FLD_UNIQUE_ID/ {                     # If line contain pattern: PIN_FLD_UNIQUE_ID
        uid=$NF;                                # Set uid = last field value
        gsub(/"/,"",uid);                       # Remove double quotes from uid value
        if ((per==80)||(per==100)||(per>100))   # If per == 80 OR per == 100 OR per > 100
                print uid,dt,dt,per;            # print values of uid, dt & per
} /PIN_FLD_PERCENT/ {                           # If line contain pattern: PIN_FLD_PERCENT
        per=$NF;                                # Set per = last field value
} /UnknownProgramName/ {                        # If line contain pattern: UnknownProgramName
        dt=sprintf("%s %s",$2,$3);              # Set dt = 2nd & 3rd field value separated by space
        gsub(/\..*/,"",dt);                     # Remove string after period operator
}' OFS=, filename | nawk '!a[$0]++'             # Set output field separator to comma (,) Read filename. Finally remove duplicates if any from o/p
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