Quoting vars, using $() instead of backticks

[KaushikMalapati]

Description

• Spaces between brackets and if condition
• Using $() instead of `` notation
• Removing the unused variable LCLS2
• Quoting the variables SIT_ENV_DIR (a path), HUTCH, station (a number), and RUN (run number)
• Disabling warning for indirect error code check, since the command executed depends on whether it's LCLS 1 or 2 and the hutch. I could have saved the command based on the branches taken and executed in the if statement to check the exit code directly, but chose not to.

Motivation and Context

How Has This Been Tested?

Where Has This Been Documented?

[KaushikMalapati]

Not sure how to test this or what a pedestal is in this context

[ZLLentz]

The diff looks clean
This does something like take a daq run and save some configuration information, right? We'll need a real system to test on.