Created
May 26, 2016 21:24
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flip single bit using perl.
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| [16:25:27] root@na:~ # echo "A"|xxd -b | |
| 0000000: 01000001 00001010 A. | |
| [16:25:30] root@na:~ # echo "A"|perl -e '$byte=shift(@ARGV);$bit=shift(@ARGV);undef $/; $in=<>; substr($in,$byte,1) = substr($in,$byte,1) ^ chr(1<<$bit); print $in' 0 1|xxd -b | |
| 0000000: 01000011 00001010 C. |
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