Shell Programming and Scripting

sorry, a tiny boo-boo:

Code:

{
        f=0
        for(i=4;i<=NF;i++) {
                n=split($i,a,":")
                s=0
                for(j=1;j<n;j++) s+=a[j]
                  if (s>=8)
                    f++
        }
}
f==(NF-3)

Hello Vgersh,

PLease don't mind me asking about the "n" in this split operation, I would like to learn it,

n=split($i,a,":")
i is 4,5,6,7,8 in our case (first case i used),
for $4, $5,...$8 you split and set the sub fields to array "a" ,
what would be the values of n?

Code:

n= a[1], a[2],...,a[6] ???

For $4, when i = 4, i used 3rd Line and 4th Column then is n like the following?

Code:

A[1]= A[2]=A[4]=0
A[3]=4
A[5]=3
A[6]=1

if so how you can compare j and n in

Code:

for(j=1;j<n;j++)

this part confused me, I appreciate if you could explain it a bit,

KR,
EAGLE

n=split($i,a,":") for field 0:29:0:0:0:0 results in

Code:

n=6  # 6 elements from string '0:29:0:0:0:0' separated by ':'
a[1]=0
a[2]=29
a[3]=0
a[4]=0
a[5]=0
a[6]=0

'j' is just a temporary iterator that goes from 1 to 'n' (the number of elements in the split string saved in array 'a').
Not sure if addressed the question though ....