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A path (or filepath, file path, pathname, or similar) is a string of characters used to uniquely identify a location in a directory structure. It is composed by following the directory tree hierarchy in which components, separated by a delimiting character, represent each directory.
If pushd is not provided with a path argument, in Unix it instead swaps the top two directories on the stack, which can be used to toggle between two directories. The popd command removes (or 'pops', in the stack analogy) the current path entry from the stack and returns to the path at the top of the stack as the new working directory. [4] [5]
Microsoft Windows file shortcuts have the ability to store the working directory. COMMAND.COM in DR-DOS 7.02 and higher provides ECHOS, a variant of the ECHO command omitting the terminating linefeed. [4] [3] This can be used to create a temporary batchjob storing the working directory in an environment variable like CD for later use, for example:
You'll find command history, command-line editing, a directory stack (pushd and popd), many useful environment variables, command completion, and more." [37] Eventually it supported "regular expressions (similar to Perl), and associative arrays." Microsoft/IBM DOS via the DJGPP project - Initial release. 1992 ()
Stack Overflow is a question-and-answer website for computer programmers. It is the flagship site of the Stack Exchange Network . [ 2 ] [ 3 ] [ 4 ] It was created in 2008 by Jeff Atwood and Joel Spolsky .
Support for command history means that a user can recall a previous command into the command-line editor and edit it before issuing the potentially modified command. Shells that support completion may also be able to directly complete the command from the command history given a partial/initial part of the previous command.
Command-line argument parsing is the process of analyzing and handling command-line input provided to a program.
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.