What is the most popular language for server-side web scripting? How does the notion of context in Perl differ from coercion? What is globbing? What is a wildcard? What is a pipe in Unix? What is...

What is the most popular language for server-side web scripting? How does the notion of context in Perl differ from coercion? What is globbing? What is a wildcard? What is a pipe in Unix? What is redirection? Describe the three standard I/O streams provided to every Unix process. Explain the significance of the #! convention in Unix shell scripts.