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Perl and PHP do this with backticks. For example,
$output = `ls`; Returns a directory listing. A similar function, system('foo'), returns the operating system return code for the given command foo. I’m talking about a variant that returns whatever foo prints to stdout.
How do other languages do this? Is there a canonical name for this function? (I’m going with ‘backtick’; though maybe I could coin ‘syslurp’.)
Perl:
ADDED: This is really a multi-way tie. The above is also valid PHP, and Ruby, for example, uses the same backtick notation as well.