Mastering Linux Shell Scripting

C-style for loops

If you have a C language background, you will be happy to know that you can write your for loops in C-style. This feature was taken from KornShell. The shell for loop can be written like this:

for (v= 0; v < 5; v++) 
{ 
 printf(Value is %d\n", v); 
} 

It is easy for C developers to use this syntax in for loops.

Check out this example:

#!/bin/bash 
for (( v=1; v <= 10; v++ )) 
do 
   echo "value is $v" 
done 

The choice is yours; you have a lot of syntax styles for the for loop.