Convert lowercase string to uppercase

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

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Re: Convert lowercase string to uppercase by cjf-II (Monk) on Nov 29, 2002 at 02:50 UTC
uc?	[reply]
Re: Convert lowercase string to uppercase by robot_tourist (Hermit) on Nov 29, 2002 at 04:41 UTC
My first thought was tr/a-z/A-Z/, but perlop will tell you to use uc (which I must confess I didn't know existed). How can you feel when you're made of steel? I am made of steel. I am the Robot Tourist. Robot Tourist, by Ten Benson	[reply]
Re: Convert lowercase string to uppercase by AltBlue (Chaplain) on Nov 29, 2002 at 17:25 UTC
if that's all input that you want uppercased, OFC that uc if your friend, as in: `perl -ne 'print uc' foo_input_file # or perl -pe '$_ = uc' foo_input_file # or even ... perl -pe 's/(.+)/\U$1\E/' foo_input_file` [download] The last example shows (again) the power of RegExps, easily giving you the (usual) ability to uppercase only some 'wanted' item from the input lines like... `# capitalize words perl -pe 's/\b(.)/\U$1\E/g' foo_input_file # ...` [download] -- AltBlue.	[reply] [d/l] [select]