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A couple of times I've ran into the situation where I've forgotten to load the Try::Tiny module in my script and I've still used its try-catch block, like this: #!/usr/bin/env perl use strict; use warnings; try { call_a( 'x' ); } catch { die "ACTUALLY die $_"; }; sub call_a { di…

I've got a mapping file of about 13491 key/value pairs which I need to use to replace the key with the value in a data set of about 500000 lines divided over 25 different files. Example mapping: value1,value2 Example input: field1,field2,**value1**,field4 Example output: field1,…