Varibles not working in do loop...

[Larry Hall (Cygwin)]

Andrew Louie wrote:
> On 4/2/07, Kevin Markle  wrote:
>> Larry Hall (Cygwin) expressed precisely :
>> > Kevin Markle wrote:
> 
>> What does this mean please and or would you send me your copy that
>> works fine?
>> "$LOG" == > "".  In these cases, the "hang" is 'cat' waiting for input
>> from the command
>> > line.
> 
> I think he means that in the line:
> 
>> UPDATES_NEEDED=`cat $LOG | grep "updates detected" | tail -1`
> 
> cat $LOG... will hang if $LOG == "" because "cat" is waiting for input.
> 

Precisely.

-- 
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
216 Dalton Rd.                          (508) 893-9889 - FAX
Holliston, MA 01746

_____________________________________________________________________

A: Yes.
 > Q: Are you sure?
 >> A: Because it reverses the logical flow of conversation.
 >>> Q: Why is top posting annoying in email?

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