:
s/x0a/n\n/
s	x[2-7]	
 !"#$%\&'()*+,-./2:;<=>?3@ABCDEFGHIJKLMNO4PQRSTUVWXYZ[\\]^_5`abcdefghijklmno6pqrstuvwxyz{|}~7&	
s/\(.\).*.\1/abcdef/
s//0123456789/g
s/.
.*\(.\).\{15\}\(.\).*\2/\1/
t
s//\\x7f/
N
s/\s//g
$s/../\\x\L&/g
b