[Wolves] CLI - how to pass a series of numbers to command

[Adam Sweet]

On 10/08/2014 18:01, Mark Croft wrote:
> hope this all makes some sense.
> 
> i find most of the time when i am doing get_iplayer stuff i want to do
> a whole series - con programme numbers/codes
> 
> eg
> 
>  get_iplayer --get 342 343 344 345 --subtitles 342 343 344 345
> 
> is there a better way to do this? some trick? to pass each number
> starting from 342 and ending at 345 , i am sure i have seen it
> somewhere but tried to google  for it.

You use curly brackets to express the number range, ie {342..345}

Some links here:

http://stackoverflow.com/questions/169511/how-do-i-iterate-over-a-range-of-numbers-defined-by-variables-in-bash

http://wiki.bash-hackers.org/syntax/expansion/brace

http://www.cyberciti.biz/faq/bash-for-loop/

http://www.cyberciti.biz/faq/unix-linux-iterate-over-a-variable-range-of-numbers-in-bash/

As your numbers in the example don't go over a ten boundary, you could
also do 34{2..5}. Examples:

adam at bunsen:~$ echo {342..345}
342 343 344 345
adam at bunsen:~$ echo 34{2..5}
342 343 344 345

Regards,

Adam Sweet

-- 

http://blog.adamsweet.org/