How to create a symbolic link when target directory doesn't exist?

Try like this,

mkdir -p  /create_your_path/ && xargs ln -s /link_file_path/file /create_your_path/

Nope, there is no standard option to ln to create a missing target directory. Use install or mkdir -p before ln, perhaps in a helper script if you find you need this more than once.

#!/bin/bash -e
mkdir -p "${!#}"
exec ln -s "$@"

This is obviously not very robust, but feel free to embellish it with more sanity checks if you think you really find it useful.