Question

10

Run through two sequences in one loop

rated 0 times [ 10] [ 0] / answers: 1 / hits: 3609 / 2 Years ago, sun, may 15, 2022, 4:48:02

I'm trying to run through two sequences in the same loop in my shell like below:

#!/bin/bash

for i in (1..15) and (20..25) ;

do

     echo $i

     ......

     .....other process

done

any idea how I can achieve this?

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oileweaty

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3 Years ago

answered 2 Years ago enefiama · Accepted Answer

You only need brace expansion for that

$ for n in {1..3} {200..203}; do echo $n; done

1

2

3

200

201

202

203

We can pass a list to for (for i in x y z; do stuff "$i"; done).

So here, braces { } get the shell to expand your sequences into a list. You only need put a space between them, since the shell splits lists of arguments on those.