Hi Monks,
I've been working on building a small script, equivalent to a Powershell Script I've already written (but this time for Linux), which essentially takes the output of a command, regex's it, chucks all the capture groups into separate arrays and counts the number of objects in each array. This is reasonably complicated (for me) in Powershell, but can be accomplished through clever use of hashtables.
I am a complete and utter Perl novice, with literally no experience in the language. I've tried to do the above with Bash but it seems so limited, and my Regex is using PCRE. I've tried using the Perl one liner but I cant seem to call the capture group variables into an array in bash to count them.
Below is a sample output from the command
JobID Type State Status Policy Schedule + Client Dest Media Svr Active PID 41735 Backup Done 0 Policy_name_here daily + hostname001 MediaSvr1 8100 41734 Backup Done 0 Policy_name_here daily + hostname002 MediaSvr1 7803 41733 Backup Done 0 Policy_name_here daily + hostname004 MediaSvr1 7785 41732 Backup Done 0 Policy_name_here daily + hostname005 MediaSvr1 27697 41731 Backup Done 0 Folicy_name_here daily + hostname006 MediaSvr1 27523 41730 Backup Done 0 Policy_name_here daily + hostname007 MediaSvr1 27834 41729 Backup Done 0 Policy_name_here - + hostname008 MediaSvr1 27681 41728 Backup Done 0 Policy_name_here - + hostname009 MediaSvr1 27496 41727 Catalog Backup Done 0 catalog full + hostname010 MediaSvr1 27347 41712 Catalog Backup Done 0 catalog - + hostname004 30564
I'm terrible with HTML so I don't know how to fix the text wrapping in the above output
Below is my regex (which works in Powershell)
/(\d+)?\s+((\b[^\d\W]+\b)|(\b[^\d\W]+\b\s+\b[^\d\W]+\b))?\s+((Done)|(A +ctive)|(\w+\w+\-\w\-+))?\s+(\d+)?\s+((\w+)|(\w+\_\w+)|(\w+\_\w+\_\w+) +)?\s+((b[^\d\W]+\b\-\b[^\d\W]+\b)|(\-)|(\b[^\d\W]+\b))?\s+((\w+\.\w+\ +.\w+)|(\w+))?\s+((\w+\.\w+\.\w+)|(\w+))?\s+(\d+)?/g
In the Script I have for windows, each capture group corresponds to the columns on this table, and my script counts the objects within each capture group (thus counting the number of failed, successful, running backups etc.
I have no code written in Perl other than the following (which doesn't work for my purpose and was Frankenstein'd from much googling)
#!/usr/bin/perl # use strict; use warnings; my $output = `bpdbjobs`; while (my $line = $output) { chomp $line; my @array = $line =~ /(\d+)?\s+((\b[^\d\W]+\b)|(\b[^\d\W]+\b\s ++\b[^\d\W]+\b))?\s+((Done)|(Active)|(\w+\w+\-\w\-+))?\s+(\d+)?\s+((\w ++)|(\w+\_\w+)|(\w+\_\w+\_\w+))?\s+((b[^\d\W]+\b\-\b[^\d\W]+\b)|(\-)|( +\b[^\d\W]+\b))?\s+((\w+\.\w+\.\w+)|(\w+))?\s+((\w+\.\w+\.\w+)|(\w+))? +\s+(\d+)?/g; foreach my $s (@array) { print "'$s'\n"; } }
Any help would be greatly appreciated - cheers
In reply to Turning regex capture group variables into arrays, then counting the number of objects in the array by Djay
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