s/e/E/g
s/E/3/2
s/x/X/p
s/i/1/1p
s/w/W/gp
s/./&/w w.out1

# GNU sed extensions
s/O/0/i
s/U/|_|/I
s/tw0/echo foo/e
s/^t/T/M
s/^t/T/m
s/^T/t/MmIipgw w.out2

# http://www.gnu.org/software/sed/manual/sed.html -- 3.5 The s Command
