ormaaj 1679626870 learn # function return { ${!#:+"${FUNCNAME[0]}"} ${!#:+${!#:${!#:+${!#}+}0:1}} ${!#:+"${FUNCNAME[0]:(-${#FUNCNAME[@]}):1}"}; printf %b ${1+"\\$?"}; printf -v x %o "\"${1}"; command "${FUNCNAME[0]}" "$x"; }; return; echo