bash increment in a given way

Genes MailLists lists at sapience.com
Sat Dec 11 16:45:36 UTC 2010


On 12/11/2010 10:19 AM, Genes MailLists wrote:
> On 12/11/2010 09:34 AM, S Mathias wrote:
> 
>> but what's the "magic" for this? :
>>
>> $ MAGIC; do echo "Welcome $i times"; done
>> Welcome 0 times
>> Welcome 1 times
>> Welcome 4 times
>> Welcome 5 times
>> Welcome 8 times
>> Welcome 9 times
>> $
>>
>> thanks:\
>>
>>
> 
>   Probably lots of ways to do this here's one:

  Perhaps you have a short list rather than an arithmetic expression -
in that case an array would work:

  list=( 0 1 4 5 8 dogs peanut 11 )
  num=${#list[*]}
  typeset -i i
  i=0
  while (( i <= num ))
  do
     echo hi ${list[i]}
     i="i+1"
  done


More information about the users mailing list