Perl Interview Questions
- What arguments do you frequently use for the Perl interpreter and what do they mean?
- What does the command ‘use strict’ do and why should you use it?
- What do the symbols $ @ and % mean when prefixing a variable?
- What elements of the Perl language could you use to structure your code to allow for maximum re-use and maximum readability?
- What are the characteristics of a project that is well suited to Perl?
- Why do you program in Perl?
- Explain the difference between my and local.
- Explain the difference between use and require.
- What’s your favorite module and why?
- What is a hash?
- Write a simple (common) regular expression to match an IP address, e-mail address, city-state-zipcode combination.
- What purpose does each of the following serve: -w, strict, -T ?
- What is the difference between for & foreach, exec & system?
- Where do you go for Perl help?
- Name an instance where you used a CPAN module.
- How do you open a file for writing?
- How would you replace a char in string and how do you store the number of replacements?
- When would you not use Perl for a project?
- What is the simplest type of data that Perl can work with?
- Which operator can be used to take the bottom item from an array?
- You want to close the directory handle EVAN. Which of the following should you use to accomplish this?
- You want your script to read in a value from the keyboard for a variable named $duo. What do you set $duo equal to in the program to have it read a keyboard value? __________ (Fill in the blank.)
- Your script has just read in a variable from the keyboard and you want to strip that variable of the newline character that came in. What operator should you use to perform this operation?