[GLLUG] Merging Records in Input

Mike Brodbelt mike at coruscant.org.uk
Thu Dec 5 23:17:08 UTC 2013

On 05/12/13 22:38, Mick Farmer wrote:
> Dear GLLUGers,
> I have an input consisting of two fields such as


> I'm sure there's a UNIX utility that does this (sort?, uniq?) but can't
> currently find it.  Can anyone help?

I believe the utility you're looking for might be called "perl"....

$ perl -n -e 'while (<>) {chomp; ($k,$v) = split(/\s+/); 
push(@{$h{$k}},$v)} foreach (sort {$a<=>$b} keys %h) {print $_ . " " . 
join(" ",@{$h{$_}})  ."\n";}' < input
7 060b
8 003d 003g 005n 008c 010a
9 100c
11 005m 013a



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