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140 bytes added ,  13:26, 17 April 2016
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       printf("\n") }'
 
       printf("\n") }'
 
</source>
 
</source>
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== Print with condition ==
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awk '{if ($3 =="" || $4 == "" || $5 == "") print "Some score for the student",$1,"is missing";'}' student-marks

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