Bash / PHP / Perl superficially look like each other. Python code looks different.
But Perl has many strange operators and conventions that do not do as expected, or are foreign to the point of being unreadable to those who don't use Perl regularly. Additionally, Perl can be made concise (one-liner) to the point of being unreadable. It's been said that Perl is a write-only language for a reason.
Contrast with Python, which I've had six-year-olds tell me what a program does after only a few minutes' introduction to Python syntax. Though to be fair, Python's List Comprehensions are in fact just as unreadable as Perl is.
But Perl has many strange operators and conventions that do not do as expected, or are foreign to the point of being unreadable to those who don't use Perl regularly. Additionally, Perl can be made concise (one-liner) to the point of being unreadable. It's been said that Perl is a write-only language for a reason.
Contrast with Python, which I've had six-year-olds tell me what a program does after only a few minutes' introduction to Python syntax. Though to be fair, Python's List Comprehensions are in fact just as unreadable as Perl is.