12-08-2009
Division by zero error message in AWK
How can I modify my awk code to get rid of the divion by zero error message? If I run the script without an input file, it should return error message "Input file missing" but not divison by zero.
Code:
#!/bin/nawk -f
BEGIN {
if (NR == 0)
{print "Input file missing"}
}
{
sum=sum + $1
}
END {print "Average is", sum/NR}
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