STEP_EXECUTE Command

Hi All,
I am new to world of unix.

i have a sample of code which determines whether a file exists or not?
i just wanted to know whats the use of SP1550 in the first line of my code.

here is my code

STEP_EXECUTE STEP030 SP1550 '$SYSIN'
DATASET SYSIN $FTPDATA/SOP/PYCHECK_F3
STEP_END RESTART=STEP005

Thanks,
vattikuti.vc

No idea what STEP_EXECUTE is. What type of script is this?

Typically, you might use something like the following for file existence checks:

if [ -f $filename ]
then
  do somethine
fi

This is the script used in an unix job .
i thought its a unix scripting. i am also not really sure abt it.
Now i need another clarification:

I have to write And Statemt in Unix.

can you help me on this?

Ex: If A= 1 and B=1
end-if

I need to the same to be converted to unix.

Thanks in advance.
vattikuti.vc

To start with, UNIX isn't a language, it's an operating system. There are many languages that will run on a Unix/Linux system which will have different syntax. For this forum, we're talking shell scripting. There are at least a couple of options:

if [ $a -eq 1 ] && [ $b -eq 1 ]
then
  echo do something
fi

or

if [ $a -eq 1 -a $b -eq 1 ]
then
  echo do something
fi