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  • using Perl grep to populate a scalar

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    Message
    From: Smith, Derek
    Sent: Tuesday, May 09, 2006 5:22 PM
    To: Perl Beginners
    Subject: using Perl grep to populate a scalar
    All,
    I am trying to populate a scalar (ideally a hash) using a Perl grep but
    it is not working. I even tried to use an array and no data was pushed.
    use strict;
    use warnings;
    my @lvs;
    my @lvaray = qx(bdf);
    foreach (@lvaray) {
    if (/(?)vg00/) {
    push @lvs, (split)[0]
    }
    }
    my %hash = ();
    my (@key2,$value2) = 0;
    foreach (@lvs) {
    $key2[$value2++] = (grep /mirror/gi, `lvdisplay $_` );
    }
    print $key2[1];
    What my hash should print for testing is data as such:
    Logical volumes
    LV Name /dev/vg00/lvol1
    VG Name /dev/vg00
    LV Permission read/write
    LV Status available/syncd
    Mirror copies 1
    Consistency Recovery MWC
    Schedule parallel
    LV Size (Mbytes) 512
    Current LE 64
    Allocated PE 128
    Stripes 0
    Stripe Size (Kbytes) 0
    Bad block off
    Allocation strict/contiguous
    I Timeout (Seconds) default
    But I only want the lines: lv name /dev/vg00/lvol1 and mirror copies 1
    For a key value relantionship.
    Thank you
    Derek
    Any thoughts?
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