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  1. Prepare
  2. Linux Shell
  3. Grep Sed Awk
  4. 'Awk' - 3
  5. Discussions

'Awk' - 3

  • ahmednajea97
     + 0 comments

    **Tricky way ** * Uses an array to map numeric grade ranges to letter grades 

    awk '
BEGIN{
# Define grade mapping: index 0 -> "F", 1 -> "C", 2 -> "B", 3 -> "A"
split("FCBA",grd,"")
}
{
avg=($1+$2+$3)/3;
	
#cond. --> fixBug: 40-59.9 result calc should be ind:2 , val:"C"
# Special case: if average < 50, assign "FAIL"
grade=(avg>=50)?grd[int(avg/20):"FAIL";]
}
{print $0 " : " grade}
'