Bash Quine

quine.sh

# quine
f(){ printf "\x$(printf %x 39)"; }; p='f(){ printf "\x$(printf %x 39)"; }; p=; echo ${p::38}$(f)${p}$(f)${p:38}'; echo ${p::38}$(f)${p}$(f)${p:38}

# quine with text
f(){ printf "\x$(printf %x 39)"; }; p='f(){ printf "\x$(printf %x 39)"; }; p=; echo ${p::38}$(f)${p}$(f)${p:38}'; echo ${p::38}$(f)${p}$(f)${p:38} INSERT YOUR TEXT HERE!

# shorter quine
f(){ printf %b \\u0027; }; p='f(){ printf %b \\u005C; }; p=; echo ${p::29}$(f)${p}$(f)${p:29}'; echo ${p::29}$(f)${p}$(f)${p:29}