linux/shell script

Question

Hi I have written a program which generates parameter index for 2 variables. Say, a and b in steps of 5. like this I have to do for 23 variables. So I don't want to write 23 for-loops to run, how can I make it into a single for-loop which is common for all 23 variables. I hope it can be done with an array, but i don't know how to implement it via program. Could you please help me?

Program:

int z, p
float a, b
float  a0, an, s, a1, b0, bn, b1
str var
s=5; a0=1; an=10; b0=8; bn=13     // s= steps, a0, b0= initial  value, an,bn=final value
z=0

a1=(an-a0)/s
b1=(bn-b0)/s

for (a=(a1+a0);a<=an;a=a+a1)   
for (b=(b1+b0);b<=bn;b=b+b1)
echo {z} {a} {b}  -format "%25s" >> /home/genesis/genesis-2.3/genesis/Scripts/kinetikit/dhanu19.txt
z=z+1
end
end

output : dhanu19.txt
                        0                      2.8                        9
                        1                      2.8                       10
                        2                      2.8                       11
                        3                      2.8                       12
                        4                      2.8                       13
                        5                      4.6                        9
                        6                      4.6                       10
                        7                      4.6                       11
                        8                      4.6                       12
                        9                      4.6                       13
                       10                      6.4                        9
                       11                      6.4                       10
                       12                      6.4                       11
                       13                      6.4                       12
                       14                      6.4                       13
                       15                      8.2                        9
                       16                      8.2                       10
                       17                      8.2                       11
                       18                      8.2                       12
                       19                      8.2                       13
                       20                       10                        9
                       21                       10                       10
                       22                       10                       11
                       23                       10                       12
                       24                       10                       13

Answer 1

Which Shell are you referring to? Declaring Arrays has some syntactical differences between zsh, bash or so...

Answer 2

Have you considered writing either a script or a program to write the script for you? Generating shell-scripts, then running them can sometimes be a powerful solution to problems.

Answer 3

fine .... i will follow d same.....

can u suggest me how to write theis progrm without repeating the loop...... its urgent for me...

Answer 4

Let's assume you write the 23 for loop. If you have 5 steps for each loop, you will end up with 5^23 parameter !

Let's suppose each loop outputs 1 byte, you still need to store something like 10^16 bytes, or ten thousand terabytes. I think you should reconsider your problem, or reformulate your question

Edit : This is not a forums (and aven in forums you can edit your post). Please edit your question instead of posting new answer, I think it is interesting

Answer 5

one more thing is i dont want dis for loop to b repeated for 23 time.... i should have only 1 for loop which should automatically take the values....

i too know tat its difficult to run the for 5^23

so can u suggest me a progem in tat i should not repeat writing this for loop and should automatically take all values .... just i want for some 5 values u just leave tat 23 values....

Answer 6

for tat 5^23 thing we will not b running in single processor

Answer 7

I vote troll