#!/bin/bash
# Usage: ./quine.sh | diff - quine.sh
b=\'
d=" "
e=_
a='a=$a$b
echo_"#!/bin/bash"
echo_"#_Usage:_./quine.sh_|_diff_-_quine.sh"
echo_b=\\$b
echo_d=\"$d\"
echo_e=$e
echo_-n_a=$b
for_c_in_$a_;_do_echo_$c_;_done
for_c_in_$a_;_do_echo_$c_|_sed_"s/$e/$d/g"_;_done
test_\'
a=$a$b
echo "#!/bin/bash"
echo "# Usage: ./quine.sh | diff - quine.sh"
echo b=\\$b
echo d=\"$d\"
echo e=$e
echo -n a=$b
for c in $a ; do echo $c ; done
for c in $a ; do echo $c | sed "s/$e/$d/g" ; done
test \'