bash - Send string to stdin -

is there way in bash:

/my/bash/script < echo 'this string sent stdin.'

i'm aware pipe output echo such this:

echo 'this string piped stdin.' | /my/bash/script

you can use one-line heredoc

cat <<< "this coming stdin"

the above same as

cat <<eof coming stdin eof

or can redirect output command, like

diff <(ls /bin) <(ls /usr/bin)

or can read as

while read line    echo =$line= done < some_file

or simply

echo | read param

Barbera