> Hello Wernher,
Hi Chris,
> Rob's code could be reconfigured slightly to do so, but requires a
> different approach. I will paste it below.
Ok, thanks.
> One change I made was to make the *values* of %hash1 an array ref as I
> thought this was how the hash was originally constructed. If the value
> for %hash1 was a string as in Rob's hash, the code below could be
> altered slightly to perform the task as well.
Ah yes, to make the values of %hash1 an array does make more sense.
> You said 'But, I plan to add things like "disk size", "disk size
> used" and "disk size free" numeric values next to each partition mount '
> It is good to build up a program in small steps and test as you go,
> but it is also helpful to have a large view of the problem so that you
> won't create data structures that work for the first stages of the
> program but fail to accomodate later alterations. You really kinda
> need to have the big picture at the start.
You are right, thank you very much.
> Chris
>
>
> #!/usr/bin/perl
> use strict;
> use warnings;
>
> # I changed the value of the hash to an array (ref). Rob had a string
> here
> my %hash1 = (
> emcpowera => [qw/sdbd sddg sdfj sdhm/],
> emcpoweraa => [qw/sdae sdch sdek sdgn/],
> emcpowerbc => [qw/sdb sdbe sddh sdfk/],
> emcpowerc => [qw/sdbb sdde sdfh sdhk/],
> emcpowerd => [qw/sdba sddd sdfg sdhj/],
> emcpowerz => [qw/sdba sddd sdfg sdhj/]
> );
>
>
> my %hash2 = (
> emcpowera1 => "/dwpdb006",
> emcpoweraa1 => "/dwpdb033",
> emcpowerbc1 => "/s00_11",
> emcpowerbc2 => "/utl_file_dir",
> emcpowerc1 => "/odsdb006",
> emcpowerd1 => "/odsdb005",
> );
>
> my %seen;
> for my $key (sort keys %hash2) {
> (my $k1 = $key) =~ s/\d+\z//;
> if (my $aref = $hash1{ $k1 }) {
>
> my $string = "$k1 @$aref";
> $string = ' ' x length($string) if $seen{$k1}++;
>
> print "$string\t$key $hash2{$key}\n";
> }
> }
>
> delete @hash1{ keys %seen };
> print "$_ @{ $hash1{$_} }\n" for sort keys %hash1;
Chris, thank you so very much for this, it does exactly the way I need it!!!
I have learned a great deal of things since I joined this list last
week Friday the 1st.
Kind regards,
Wernher Eksteen
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