[SOLVED] BASH variables with su

dreamline · 08-25-2016, 11:47 PM

Hi all,
I have been programming bash for a while. I'm not a complete expert but I can make my scripts work. However now that I have Linux 7.2 I'm running into problems. Here is mij problem.
I am writing a script with the following block:

Code:

su - oracle << EOF

     examplevar="$(set | grep 'PATH=')
     echo "${examplevar}"
EOF

So within the block I set some variables, however when I want to echo those variables, the are presented as empty. I never had this problem using Oracle Linux 5.x and 6.x. Now that I installed Oracle Linux 7.2 I can't get my scripts to work. The variable is not printed but when I perform the command directly without storing it into a variable, it works perfectly and results in showing the environment variable PATH=.......

Anyone have any idea how to fix this?

Thanks for any help.

Regards,
Dreamline

dreamline · 08-26-2016, 12:22 AM

Found the solution. I need to escape the $ sign inside an EOF block.

Code:

su - oracle << EOF

     examplevar="$(set | grep 'PATH=')
     echo "\${examplevar}"
EOF