I do have a segment in my code like follows:

if [ condition ] then
ls /nosuchdir
fi


what does the ls /nosuchdir means ??

The ls /nosuchdir command will give a listing of files in the /nosuchdir directory. Beware, since the directory is preceded by the / means that you are looking to the root of your system and not referencing from where you are currently.

I doubt whether you are aware /nosuchdir ...
"nosuchdir" is not a directory .. Its a concept in shell scripting..

So please let me know that...

hmmm... what 'concept' is that?

Here's a shot in the dark:

Since the file doesn't exist, the 'concept' is a quick and easy method of producing output that also affects the error flags.

I'm not sure I can 'parse' what's being said here!
Could you elaborate, pls?!

Check for a condition
If the condition is true
Then list files in the directory

Perhaps the vagueness, or "conceptualness", is confusing people

Provide actual script code

I'm as confused as vgersh99 here, I don't see any concept here nor do I see any logic to a such a redundant piece of code.

Even i do agree....
I have not read these concepts in any bash shell scripting guide.
Could you please clarify in detail ?

My script is as follows:

SRC=$INPUT_FILE
SIZE=$(cksum $SRC | awk '{print $2}')
if [[ $SIZE < 1 ]] ; then
ls /nosuchdir
fi


The $INPUT_FILE is received as an argument to this script. This was developed by somebody else. So I am trying to understand the code. I got confused when i saw "ls /nosuchdir" . There will never be a directory under name "nosuchdir" in the whole file system. So what does this mean ??

I heard that people will use like this, and there is some concept behind this. Even I too don't know about hat and much confused...

So, please friends help me out...