Re: contents of whole arrays dissapears leaving while read loop

[Jan Schampera]

Lennart Schultz wrote:

> In the construct
> cat file|while read line
> do
> done
> the content of any arry assignments in the loop dissapears leaving the loop:

This is logic, since every part of the pipe runs in an own subshell (the
first one runs in the "current shell"). This behaviour is also *not*
limited to arrays.

This is not a bug, this is a consequence of Bash's design.

You might find hints here:

Why?
http://bash-hackers.org/wiki/doku.php/scripting/processtree

How to do it instead?
http://bash-hackers.org/wiki/doku.php/syntax/expansion/proc_subst

J.