in reply to Basic transformations

Yet another one liner for this: 
echo '48 65 6c 6c 6f 2c 20 77 6f 72 6c 64 21' | perl -lane 'for $ch ( 
+split /\s/ ) { $st .= chr(hex($ch)); } print $st;'

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Re^2: Basic transformations
by jwkrahn (Abbot) on Nov 29, 2010 at 22:24 UTC

    You are using the  -a switch which splits the fields on whitespace and puts them in  @F so you could write that as: 

    echo '48 65 6c 6c 6f 2c 20 77 6f 72 6c 64 21' | perl -lane '$st .= chr
+ hex for @F; print $st;'

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