Re: BASH Guru needed

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On 09/26/03 00:25 -0400, Chris Kloiber wrote:
> On Wed, 2003-09-24 at 22:13, Bill Gradwohl wrote:
> > I'm trying to read a file into an array and not having much success.
> > 
> > The following test script is self contained. 
> > 
> > #!/bin/bash
> > 
> > # Create a test file to read
> > cat >/tmp/junkfile <<-"CODE"
> > line 1
> > line 2
> > line 3
> > CODE
> > 
> > echo ===========Loop 1==============
> > declare -a RULES
> > i=0
> > j=4
> > 
> > # Read the test file line by line into the RULES array.
> > cat /tmp/junkfile| while read x; do
                    ^^^
The problem is the pipe.  It starts a subprocess, which is invisible to
the parent process, i.e. the outer loop.  This fragment will work:

echo ===========Loop 1==============
declare -a RULES
i=0
j=4
INFILE="/tmp/junkfile"
RULES=(`cat $INFILE`)
echo RULES ARRAY ${RULES[*]}

John


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