new line in bash parameter substitution ${REV%%\n*}

Question

does not work

echo ${REV%%\\n*}

does work

echo ${REV%%
*}

After reading trough http://tldp.org/LDP/abs/html/p

Answer 1

More portably (ie, POSIX):

var="yo
yo"
newline="
"

echo "${var#*"$newline"}"