Question about the difference between "for" and "while" loop
dear all,
i got some questions about for/while loop when working on redirect command output to for/while loop.
take one for example :
in for loop :
this will have the output something below, only the first one will have the $index variable:
however, if i change to use "while" loop, then it's different:
the command output will look like below, every line will have
the $index variable in the beginning:
Can anyone advise why the result from "for" and "while" isn't same??
Thanks.
Moderator's Comments:
Use code tags, see PM, thanks.
Last edited by zaxxon; 03-20-2012 at 06:36 AM..
Reason: code tags
In the for loop you are not putting the files into an array, but rather into a string, therefore the loop is executed only once for "${allfiles[0]}", which contains the entire list of files.
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