My bash shell on SLES( 2.6.32.12-0.7-default #1 SMP 2010-05-20 11:14:20 +0200 x86_64 x86_64 x86_64 GNU/Linux) hangs on the first code sample, waiting for the close single quote.
After one is provided, it complains (and perl does too .. the intent was to show code that appears to hang in the shell). Here is the session:
/>: perl -e 'print qx|printf "%b" "this is a q\'uot\'ed test|'
>
> .. Hanging here
> .. until quote..
> '
-bash:
.. Hanging here
.. until quote..
: command not found
Can't find string terminator "|" anywhere before EOF at -e line 1.
/>:
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