Question

1. Which conditional statement is equivalent to "if (!<condition>)"?
a. unless ()
b. failure ()
c. fails ()
d. ifn ()

2. Correct command in Perl script
a. "cp file1 file2"
b. 'cp file1 file2'
c. `cp file1 file2`
d. {cp file1 file2}

3. What is -> Symbol in Perl?

Answer 1

1. Correct answer is a) unless()Perl does not have &quot;failure&quot;,&quot;fails&quot;, &quot;ifn&quot; keywords
2. Answer is c), where the command is taken inquotes ``
3. In object oriented PERL the arrow -&gt; symbol is usedfor creating or accessing a particular object of a class