Awk by Example--转载

function monthdigit(mymonth) {
return (index(months,mymonth)+3)/4
}

print monthdigit("Mar")

3

        
function doincome(mybalance) {
    mybalance[curmonth,$3] += amount
    mybalance[0,$3] += amount        
}
function doexpense(mybalance) {

mybalance[curmonth,$2] -= amount

mybalance[0,$2] -= amount

}
                        
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