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Variable Meaning @file The name of the matching item, double quoted. @fname The basename of the matching item (without file extension), double quoted. @ext The file extension, double quoted, without leading dot. If a file has multiple extensions, only the last is returned. If the file has no extension, a quoted empty string is returned. @path
(This can be used to produce files suitable for loading with 'history -L' or 'source -h'.) With -r, the order of printing is most recent first rather than oldest first. With -S, the second form saves the history list to filename. If the first word of the savehist shell variable is set to a number, at most that many lines are saved.
Windows PowerShell ships with providers for the file system, registry, the certificate store, as well as the namespaces for command aliases, variables, and functions. [38] Windows PowerShell also includes various cmdlets for managing various Windows systems, including the file system , or using Windows Management Instrumentation to control ...
Similarly, changing or removing a variable's value inside a DOS or Windows batch file will change the variable for the duration of COMMAND.COMor CMD.EXE's existence, respectively. In Unix, the environment variables are normally initialized during system startup by the system init startup scripts , and hence inherited by all other processes in ...
In computing, a here document (here-document, here-text, heredoc, hereis, here-string or here-script) is a file literal or input stream literal: it is a section of a source code file that is treated as if it were a separate file.
In computing, command substitution is a facility that allows a command to be run and its output to be pasted back on the command line as arguments to another command. . Command substitution first appeared in the Bourne shell, [1] introduced with Version 7 Unix in 1979, and has remained a characteristic of all later Uni
The print command allowed specifying one of many possible local printer interfaces, [23] and could make use of networked printers using the net command. [24] A maximum number of files and a maximum buffer size could be specified, and further command-line options allowed adding and removing files from the queue. [23]
In MS-DOS, a batch file can be started from the command-line interface by typing its name, followed by any required parameters and pressing the ↵ Enter key. When DOS loads, the file AUTOEXEC.BAT, when present, is automatically executed, so any commands that need to be run to set up the DOS environment may be placed in this file.