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#!/usr/bin/perl print "Hello, World!\n"; The hash mark character introduces a comment in Perl, which runs up to the end of the line of code and is ignored by the compiler (except on Windows). The comment used here is of a special kind: it’s called the shebang line.
#!usr/bin/perl – called the "shebang line", after the hash symbol (#) and ! (bang) at the beginning of the line. It is also known as the interpreter directive. # – the number sign, also called the hash symbol. In Perl, the # indicates the start of a comment. It instructs perl to ignore the rest of the line and not execute it as script code.
will fix the problem. This is actually a pretty common mistake, and perl will catch it for you if you turn "warnings" on. To do that, change the first line to: #!/usr/bin/perl -w and perl will say: Useless use of sort in void context at line 10. which is a little obscure, but at least tells you to look for trouble on that line.
#!/usr/bin/perl # Loads the module and imports any functions into our namespace # (defaults to "main") exported by the module. Hello::World exports # hello() by default. Exports can usually be controlled by the caller. use Hello::World; print hello (); # prints "Hello, world!\n" print hello ("Milky Way"); # prints "Hello, Milky Way!\n"
CGI.pm was a core Perl module but has been removed as of v5.22 of Perl. [1] The module was written by Lincoln Stein and is now maintained by Lee Johnson. Examples
As 2025 approaches, Bitcoin (CRYPTO: BTC) finds itself navigating a shifting macroeconomic landscape, with fading tailwinds raising concerns about sustained momentum, according to a report. What ...
qrpff is a Perl script created by Keith Winstein and Marc Horowitz of the MIT SIPB. [1] It performs DeCSS in six or seven lines. The name itself is an encoding of "decss" in rot-13. The algorithm was rewritten 77 times to condense it down to six lines. [2] In fact, two versions of qrpff exist: a short version (6 lines) and a fast version (7 lines).
The Baseball Hall of Fame ballot is being mailed to 400 members of the Baseball Writers Association of America this week, and that ballot includes 14 candidates appearing for the very first time.