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STDIN inheritance during exec and difference between getc and sysread

by bdimych (Monk)
on Feb 25, 2013 at 19:48 UTC ( #1020557=perlquestion: print w/replies, xml ) Need Help??

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  1. or download this
    echo -n ab | perl -e "print getc; exec 'perl', '-e', 'print getc'"
  2. or download this
    echo -n ab | perl -e "sysread(STDIN, \$b, 1); print \$b; exec 'perl', 
+'-e', 'sysread(STDIN, \$b, 1); print \$b'"

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