And array items can be spliced (shifted, popped).

Because we don't know what you mean. Maybe you want the unlink function? Or the delete function? Or maybe the undef keyword/function/value?

If you can't find it yourself, maybe you can describe to us what kind of function you are searching for.

Because it is so easy to synthesis?:

sub remove {
    my $path = shift;
    if(    -f $path ) { unlink $path; }
    elsif( -d $path ) { rmdir  $path }
    else{ die "Dunno what to do with $path?" }
}
[download]

'remove' at the Windows command line and 'rm' at the UNIX command line.

cmd doesn't have a REMOVE command. The functionality of rm and rm -r is provided by DEL (aka ERASE) and RD (aka RMDIR).

Just because a language does not have a function of the name you are seeking, it does not mean that you can't do what you want to do- just as easily.

Different (programming) languages have different names for functions, because the people who created the languages- were different people, who had their own idea of what the 'remove' function should be named.

You're invited to read about perl and find what you are seeking. You can also search for something like 'remove' on that site.

You mean "Why doesn't Perl have a function named 'remove'?" Because it doesn't. This is exactly the same reason why Perl doesn't have a function named "insert." It may be obvious to you what a remove function would do, but it does beg the question "remove what?"

A lot of functions that interact with the file system are derived from Unix system calls, and unlink is one of them.

Incidentally, your node title is not terribly informative. It could easily mean "what is the remove function," "how does one remove a function," or "where is the function named remove?" Indeed, my first interpretation was the second, whereas your meaning seems to be closer to the third.