I wonder if someone could tell me why this code is not working. It is to sort the records from highest percent to lowest. (I edited the regexp in split) Found one error. the mao{$_[0]} should be map {$_->[0]} and the split needed a newline (\n) at the end of the pattern split(/(?<=workspace\/data)\n/, $s) Now, I'm getting the correct sorted output.

C:\Old_Data\perlp>perl try3.pl
>>> prd1702
Filesystem                                  Size  Used Avail Use% Moun
+ted on
/workspace                                  3.9T  746G  3.1T  23% /wor
+kspace/data
>>> prd1703
Filesystem                                  Size  Used Avail Use% Moun
+ted on
/workspace                                  3.9T  687G  3.2T  18% /wor
+kspace/data
>>> prd1701
Filesystem                                  Size  Used Avail Use% Moun
+ted on
/workspace                                  3.9T  887G  3.0T  13% /wor
+kspace/data
[download]

(Below, the code before fixes noted above)

#!/usr/bin/perl
use strict;
use warnings;
use feature 'say';

#https://stackoverflow.com/questions/79472778/sorting-the-content-of-a
+-file

my $s = <<EOF;
>>> prd1701
Filesystem                                  Size  Used Avail Use% Moun
+ted on
/workspace                                  3.9T  887G  3.0T  13% /wor
+kspace/data
>>> prd1702
Filesystem                                  Size  Used Avail Use% Moun
+ted on
/workspace                                  3.9T  746G  3.1T  23% /wor
+kspace/data
>>> prd1703
Filesystem                                  Size  Used Avail Use% Moun
+ted on
/workspace                                  3.9T  687G  3.2T  18% /wor
+kspace/data
EOF


my @data = map {$_[0]}
          sort {$b->[1] <=> $a->[1]}
           map {[$_, /\s(\d+)%/]} split(/(?<=workspace\/data)/, $s);
[download]

It is printing error as:

C:\Old_Data\perlp>perl try3.pl
Use of uninitialized value in numeric comparison (<=>) at try3.pl line
+ 23.
Use of uninitialized value in numeric comparison (<=>) at try3.pl line
+ 23.
[download]

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