Printing an Hash

anshumangoyal has asked for the wisdom of the Perl Monks concerning the following question:

I have a hash which has around 20 Key Value Pairs. I want to print these values in a file and on screen in such a way that the indentation is not lost. I want to print it in mysql query output format. The Keys will be name of parameter and below it the value of the key has to be printed. I tried with sprintf but it's not a success. The keys length are different and so it he value length. What is the best possible solution?

Comment on Printing an Hash

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Re: Printing an Hash by BillKSmith (Monsignor) on Aug 01, 2012 at 16:01 UTC
Consider using the module Data::Dumper	[reply]
Re^2: Printing an Hash by frozenwithjoy (Priest) on Aug 01, 2012 at 23:30 UTC
or Data::Printer (my fave because you have to type less, you get fancy colors, and indices are included in the output)	[reply]
Re: Printing an Hash by blue_cowdawg (Monsignor) on Aug 01, 2012 at 17:57 UTC
`printf "%s\n", join("\n",map { $_ . " " . $hash{$_} } sort keys %hash);` [download] Peter L. Berghold -- Unix Professional Peter -at- Berghold -dot- Net; AOL IM redcowdawg Yahoo IM: blue_cowdawg	[reply] [d/l]
Re: Printing an Hash by suaveant (Parson) on Aug 01, 2012 at 14:53 UTC
Why don't you type up an example of how you want the data to look, that'd help a lot in pointing you to a solution. - Ant - Some of my best work - (1 2 3)	[reply]
Re: Printing an Hash by Rudolf (Pilgrim) on Aug 01, 2012 at 15:37 UTC
This should keep all of your indentation, though Im not aware of how you want it printed out, so I just put each key and value on a newline `use v5.14; my %hash = (' key' => 'value ',"\tkey2" => "value2\t"); open(FILE,'>>','filename') or die "$!"; while ( my($key, $value ) = each(%hash)){ print "$key\n$value\n"; print FILE "$key\n$value\n"; } close FILE;` [download]	[reply] [d/l]