If you added some means of decoding to STDIN and encoding STDOUT, yes. 

>perl -CSD -we"print chr 0x2660" | perl -CSD -we"printf qq{%X\n}, ord 
+<STDIN>"
2660

[download]

-C even works if you read STDIN through ARGV: 

>perl -CSD -we"print chr 0x2660" | perl -CSD -we"printf qq{%X\n}, ord 
+<>"
2660

[download]

I don't have time to check the other tools right now.

Update: Hey! -C DOES work with ARGV. I knew binmode and use open had problems with ARGV, so I took the OP's word for it when he said -C didn't work with it either. 

>perl -CSD -we"print chr 0x2660" > foo

>perl -CSD -we"printf qq{%X\n}, ord <>" foo
2660

[download]

In reply to Re^3: Search & replace of UTF-8 characters ? by ikegami
in thread Search & replace of UTF-8 characters ? by levien

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