Shell Programming and Scripting

I used shc for encrypting a bash script. It worked fine, but the issue is that, when I run the script using ./test.sh.x in a screen and after getting out of the screen when I type "ps aux" I can see the source code from the command prompt and also the commands being executed as plain text. See example below. Is there any other tool which can be used to encrypt and will not show commands like this when we run the encrypted script?

Code:

22089 pts/2    S+     0:00 ./install.sh.x -c #!/bin/bash?#=======================================================?# FILE : install.sh?# 
USAGE : sh install.sh
22449 pts/2    R+     0:08 /usr/bin/python /usr/bin/yum install gcc gcc-c++

None that really work as far as I am aware.