Shell Programming and Scripting

UNIX provides the special variable HOME which is almost certainly set to your users' home directory already. RIAMP_HOME seems redundant.

The path RIAMP_HOME/bin/... doesn't expand to what you want it to because you didn't put braces around RIAMP_HOME. Try ${RIAMP_HOME}.

Your first test is to test if the home variable is blank, and execute code inside the if statement when true. Your next test is the same -- only execute code in this block if the string is blank. So, it's backwards -- it will never be executed when the string is set. It's also completely redundant, since you tested for that 3 lines ago. You can leave out that "if" completely. (For the record, to check if a string is not blank, you do if [ ! -z "${STRING}" ]

Shell script doesn't have "call". It has . or source instead (they are synonyms).

"call" is not a subroutine and never has been, though if you treat it carefully and squint a little it's kind of similar. UNIX shells, more modern ones anyway, have actual subroutines:

Code:

function do_something
{
        echo $1
}

do_something "qwertyuiop"

And lastly, you'd still be much better off rewriting from scratch than "translating" a batch file. Tons of things that could only be accomplished in CMD via diabolical tricks are easy one-liners in a real shell -- your big library of batch routines may be mostly redundant now. Just naively translating them like this won't teach you as much about real shell scripting, and will probably encourage some bad shell-programming habits.

@Corona688

Thank you very much Corona688. I really appreciate. I am working on some java development stuff as well. This would be time consuming if I write from scratch now. That is why i am writing corresponding code for the same. I would definitely try to write shell scripts though.

Best regards.