Another Newbie Question 'For Syntax'

[Scott Frye_1]

If I were writing this in C I would write:
For($i=0; $i<$total; $i+9) {
whatever I want to do
}

Does Posix have a similar syntax to do this? I've looked in the sh-posix man pages and haven't come up with this type of loop. Can anyone help me again?

Thanks

Scott

[Sundar_7 · Accepted solution]

You will have to try something like this with while

typeset -i COUNT=0
MAX=10

while [[ $COUNT -lt $MAX ]]
do

(( COUNT=COUNT+1 ))
done

[Scott Frye_1]

Wasn't what I was looking for but it worked like a charm. Thank you for your input.

[Muthukumar_5]

You can use until format for this too as,

i=0
total=10

until [[ $i -gt $total ]]
do

echo $i


# loop increment
let i=i+1
done

[Sundar_7]

Scott,

This may not be what you are looking for. But as far as I know, there is no loop construct like that in Posix.

FOR loop in posix will only accept list of values, not the range of values.

You can try something like this

for I in 0 1 2 3 4 5 6 7 8 9

But clearly, it is not an elegant or effective way of scripting.

-- Sundar.

[Muthukumar_5]

We can use awk programming to use exact format of c as,

i=0
total=10

echo "$i $total" | awk '{ for ( i=$1; i<=$2; i++) }'

- Muthu