bashmoduloarithmetic-expressions

How to use mod operator in bash?

I'm trying a line like this:

for i in {1..600}; do wget http://example.com/search/link $i % 5; done;

What I'm trying to get as output is:

wget http://example.com/search/link0
wget http://example.com/search/link1
wget http://example.com/search/link2
wget http://example.com/search/link3
wget http://example.com/search/link4
wget http://example.com/search/link0

But what I'm actually getting is just:

    wget http://example.com/search/link
Solution

  • Try the following:

     for i in {1..600}; do echo wget http://example.com/search/link$(($i % 5)); done

    The $(( )) syntax does an arithmetic evaluation of the contents.