Shell Programming and Scripting

Hi Friends ,
I am urgently needed your help.
could you pleas help me in creating the shell script.

Requirement :
collect the data from no_file.txt

no_file.txt
============
1
11
265
290
300
313
326
351

Then create another shele script like
my_shell.csh
===========
head -11 M2_Sales_N01.txt |tail -10 >M2_Sales_N01_01.txt
head -265 M2_Sales_N01.txt |tail -254>M2_Sales_N01_02.txt
head -290 M2_Sales_N01.txt |tail -25 >M2_Sales_N01_03.txt
head -300 M2_Sales_N01.txt |tail -10 >M2_Sales_N01_04.txt

head -313 M2_Sales_N01.txt |tail -13 >M2_Sales_N01_05.txt
head -326 M2_Sales_N01.txt |tail -13 >M2_Sales_N01_06.txt
head -351 M2_Sales_N01.txt |tail -25 >M2_Sales_N01_07.txt
....
....

Logic
=====
fetch the first two digit (1,11) then last-first, 11-1 =10
head -11 M2_Sales_N01.txt |tail -10 >M2_Sales_N01_01.txt

fetch next two nos (265,11) .Then 265-11=254
head -265 M2_Sales_N01.txt |tail -254>M2_Sales_N01_02.txt

Thanks In advance.
Bikas

Hi folk,

THis one is ok for you.

code:

Code:

awk 'BEGIN { 
format="head -%d M2_Sales_N01.txt |tail -%d >M2_Sales_N01_%02d.txt\n"
n=0
m=0
}
{
if (n==0)
{
	tmp=$1
	n=1
}
else
{
	res=$1-tmp
	tmp=$1
	m=m+1
	printf(format,$1,res,m)
}
}' filename

Wait, is this homework? Check out the FAQ, as it is heavily discouraged (item #6).

Thanks a loooooooooooooooooooooooooooooot summer_cherry.

You are a gem of gems.
you have done a great help to me..


Thanks