Curious to know the internals of the following code

[jesuashok]

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[BUU]

The first time you assign to @list you use 'q' which is a pseudonym (or perhaps real name) for the '' operator. The second time you assign you use qw// which splits on spaces.

[jbrugger]

A little bit of reading would have helped...
It's all there: perlop


# q/STRING/
# 'STRING'

A single-quoted, literal string. A backslash represents a backslash un
+less followed by the delimiter or another backslash, in which case th
+e delimiter or backslash is interpolated.

    $foo = q!I said, "You said, 'She said it.'"!;
    $bar = q('This is it.');
    $baz = '\n';        # a two-character string


qw/STRING/

Evaluates to a list of the words extracted out of STRING, using embedd
+ed whitespace as the word delimiters. It can be understood as being r
+oughly equivalent to:

    split(' ', q/STRING/);

the differences being that it generates a real list at compile time, a
+nd in scalar context it returns the last element in the list. So this
+ expression:

    qw(foo bar baz)

is semantically equivalent to the list:

    'foo', 'bar', 'baz'

[blazar]

Because despite the name @list you're in fact assigning it a single element which is precisely the string "'Ashok Hello'", that is: without the external double quotes, but with the internal single ones. That is precisely the difference between q() and qw(): the former returns non interpolated strings, and when used with "'" (single quotes) as a delimiter "q" become redundant, while the latter returns a list of (non interpolated) "words"¹, splitting on whitespace.


---

¹ Notice the double quotes - I mean that they're not required to match /^\w+$/.