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In Unix-like operating systems, unlink is a system call and a command line utility to delete files. The program directly interfaces the system call, which removes the file name and (but not on GNU systems) directories like rm and rmdir . [ 1 ]
The POSIX directory listing application, ls, denotes symbolic links with an arrow after the name, pointing to the name of the target file (see following example), when the long directory list is requested (-l option). When a directory listing of a symbolic link that points to a directory is requested, only the link itself will be displayed.
Perl. Block comments in Perl are considered part of the documentation, and are given the name Plain Old Documentation (POD). Technically, Perl does not have a convention for including block comments in source code, but POD is routinely used as a workaround. PHP. PHP supports standard C/C++ style comments, but supports Perl style as well. Python
Outline of Perl – overview of and topical guide to the Perl programming language; Raku – Perl 5's sister language; man page – form of software documentation usually found on a Unix or Unix-like operating system, invoked by issuing the man command. Perl documentation is sometimes available as man pages.
The editor contains tools for programmers, including macros, configurable syntax highlighting, code folding, file type conversions, project management, Perl Compatible Regular Expressions for search-and-replace, a column-edit mode, remote editing of files via FTP, interfaces for APIs or command lines of choice and more.
rm (short for remove) is a basic command on Unix and Unix-like operating systems used to remove objects such as computer files, directories and symbolic links from file systems and also special files such as device nodes, pipes and sockets, similar to the del command in MS-DOS, OS/2, and Microsoft Windows.
An n-component link L ⊂ S 3 is an unlink if and only if there exists n disjointly embedded discs D i ⊂ S 3 such that L = ∪ i ∂D i. A link with one component is an unlink if and only if it is the unknot. The link group of an n-component unlink is the free group on n generators, and is used in classifying Brunnian links.
The DBI and DBD Perl packages allow Perl programmers to access many database environments in a standard way. The system implements each supported database environment as a DBD driver, in much the same way that hardware devices from multiple vendors can operate with different CPU platforms. Prospective DBD users can download DBD implementations ...