ld.so.preload and scope in the PATH about appscope

[iapaddler]

--> update /usr/lib/appscope/dev/libscope*
$ sudo ./bin/linux/x86_64/scope ls
--> put scope in the PATH
$ sudo ln -s /home/ubuntu/appscope/bin/linux/x86_64/scope /usr/local/bin/scope

--> create ld.so.preload
$ sudo touch /etc/ld.so.preload
$ sudo chmod ga+w /etc/ld.so.preload
$ echo /usr/lib/appscope/dev/libscope.so > /etc/ld.so.preload
$ cat /etc/ld.so.preload

--> test a couple commands
$ scope ls
LICENSE cleanup_after_start.sh config2.json coverage docker.log extract_symbols.sh .....

$ sudo scope ls
unknown command "ls" for "scope"

Did you mean this?
k8s
logs
ps

--> command line option not processed with sudo?? remove ld.so.preload and it works
truncate --size 0 /etc/ld.so.preload
$ sudo scope ls
WARNING: Session history will be stored in /root/.scope/history and owned by root
LICENSE cleanup_after_start.sh config2.json coverage docker.log ......

--> put ld.so.preload back and it fails
$ echo /usr/lib/appscope/dev/libscope.so > /etc/ld.so.preload
$ sudo scope ls
unknown command "ls" for "scope"

Did you mean this?
k8s
logs
ps

--> remove scope from the PATH and it works
$ sudo rm /usr/local/bin/scope
$ sudo scope ls
WARNING: Session history will be stored in /root/.scope/history and owned by root
LICENSE cleanup_after_start.sh config2.json coverage docker.log ......

--> starts bash as root and it works
$ sudo bash
$ scope ls
works....