@ -249,7 +249,7 @@ _exists() {
fi
if command >/dev/null 2>&1; then
command -v "$cmd" >/dev/null 2>&1
else which >/dev/null 2>&1;
elif which >/dev/null 2>&1;
which "$cmd" >/dev/null 2>&1
ret="$?"
@ -259,7 +259,7 @@ _exists() {
#a + b
_math() {
printf "%s" "$(( $@ ))"
printf "%s" "$(($@))"
}
_h_char_2_dec() {