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Shell Programming and Scripting

combine duplicate records

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# 8  
Old 10-27-2009
In your awk code below where is the input file we are passing and where is outfile, i see "a" in your code is this the input file name....??? i also see word "file"..is this INPUT or OUTPUT file..?? what is this doing...???

thanks

# awk 'NF{a[substr($0,0,9)]=(a[substr($0,0,9)])?a[substr($0,0,9)] FS substr($0,34,7):$0}END{for(i in a)print a[i]}' file
# 9  
Old 10-27-2009
Code:
awk 'NF{a[substr($0,0,9)]=(a[substr($0,0,9)])?a[substr($0,0,9)] FS substr($0,34,7):$0}END{for(i in a)print a[i]}' Input_file > Output_file
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