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Old 12-15-2008
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radoulov radoulov is offline Forum Staff  
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Well,
if you know Perl and there is part of the code that you don't understand,
I'll try to explain it.
Otherwise, you may search this site for Perl tutorial.
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Old 12-15-2008
laxmi131 laxmi131 is offline
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Posts: 22
i have no idea in pearl, anyways I'll learn it and get back to you if i am not able any part of the command .
I have another doubt
in the above command we are sorting the input file with one column (column 4) .how can i sort the input file (varchar sort) with two columns
For eg: in the input file first i need to sort with column 3 and then with column 4

thanks in advance
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Old 12-15-2008
radoulov's Avatar
radoulov radoulov is offline Forum Staff  
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Code:
perl -F'\|' -ane'
  @F > 6 and $_{$k = join "\|", @F[2,3]} = $_ or
  $_{$k} .= $_;
  print map $_{$_}, sort keys %_ if eof
  ' infile
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