How to switch between users in OpenWrt using 'su -l' in terminal or any other way?

I have created one new user according to this link "https://wiki.openwrt.org/doc/howto/secure.access" and followed the Method 2. I want to switch from root to new user in OpenWrt as I did in Ubuntu in Ubuntu using 'su -l dhaka(username)' to switch from rafsan to dhaka user. But the OpenWrt prompts "'su' is not found" .

Solution

In order to use su, the shadow package needs to be installed.

opkg install shadow

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