What is the difference between Perl and C?
| S.No | Perl | C |
| 1 | There are several development tools in Perl as compare to C | Development tools are less and are not very advanced |
| 2 | It executes more slowly than C in a few situations | C has speed almost equal to that of Perl |
| 3 | Code can be hidden in Perl | The same is not possible in the case of C |
| 4 | The executable can be created without depending on the additional tools | Additional tools are the prime requirement |
Can you name the variables in which the chomp works? Also, how they are different from one another?
These are: Scalar and Array
Scalar is generally denoted by the symbol $ and it can have a variable that can either be a string or a number. An array on the other side is denoted by @ symbol. An array is always a number. Both these variables have a different namespace. The scalar variables are capable to hold a value of 1 digit while the array can have more values. Both of them can be executed in the function whenever there is a need for the same.
How can you represent the warning signs in the Perl in case of an error and what are the options through which this task can be performed?
There is an option in Perl which is known as the Command-Line. All the warning messages can be displayed using this and the pragma function simply makes sure that the user can declare the variables during the appearance of warning messages. The entire program can be scrolled easily and in fact, in a very short span of time using the in-built debugger.
Can you tell the meaning of the term debugging in programming?
Well, every programmer is familiar with this approach. The fact is many errors declare their presence in the programs due to reasons which are not always necessary to be known exactly. Eliminating these errors is very essential for the smooth flow of the tasks. Finding bugs or errors is known as debugging. The programming languages can have in-built options for debugging or the programmers are free to consider other options too.
What are “Require” and “Use” statement in Perl and when it is used?
It is considered when it comes to importing the functions in a way that they can be accessed directly during the program. The users are free to get the results in case the substatements are not accurate. On the other side, the use statement is generally executed during parsing.
Name a few arguments which are used in Perl frequently. Tell their meaning as well
These areas following
- -d which means debug
- -w that indicates a warning
- -e means execute
- -c which says non return compilation
Tell something about the Associate Arrays in Perl and how they are significant for the programmers?
It is basically one of the widely used data types in Perl after Scalar and Array. They are quite similar to that of a hash table and there are a lot of functions that are quite similar to that of the same.
What are the guidelines about the Perl Modules which users should pay attention to and follow?
There are various things that a user should pay attention to. A few important ones are as follow:
- The user must always make it the user that a Package Name should always begin with a capital letter
- If there is a file name, the extension for the same could be .pm
- The package should come from the exporter class in case the object is not considered for the same
For executing a program in Perl, is there any basic condition which the users have to fulfill?
The users must make sure that the program they have accomplished should be passed through the interpreter before its actual execution. It actually compiles the program reliably and the best part is the users are free to ignore any spaces or marks in the same.
While start working on a project, how you will decide Perl is suitable for the same
The first thing to pay attention to is whether the execution need is fast or not. If so, Perl is a good option to consider. The users are free to keep up the pace with flexibility as well. Perl is highly flexible and it can enable users to keep up the pace with the same. Perl is open source and is free from license issues. Perl has one of the best and in fact, the largest free code repositories that simply make it one of the best options to be considered. Also, it is one of the best programming languages with vast support available for programmers.
