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Example usage of tee: The output of ls -l is redirected to tee which copies them to the file file.txt and to the pager less. The name tee comes from this scheme - it looks like the capital letter T. The tee command is normally used to split the output of a program so that it can be both displayed and saved in a file. The command can be used to ...
A common interactive use of cat for a single file is to output the content of a file to standard output. However, if the output is piped or redirected, cat is unnecessary. A cat written with UUOC might still be preferred for readability reasons, as reading a piped stream left-to-right might be easier to conceptualize. [14]
PowerShell scripts (files suffixed by .ps1) PowerShell functions; Standalone executable programs; If a command is a standalone executable program, PowerShell launches it in a separate process; if it is a cmdlet, it executes in the PowerShell process. PowerShell provides an interactive command-line interface, where the commands can be
If the date argument begins with a minus (-), only files modified on or before the given date are selected (older file / modified earlier). Otherwise, only files modified on or after the given date are selected (younger files / modified later). An explicit plus (+) may be given, but is the default. Note that both modes select files on the given ...
The > in the third example is a redirection operator, telling the command-line interpreter to send the output of the command not to its own standard output (the screen) but to the named file. This will overwrite the file. Using >> will redirect the output and append it to the file.
In computing, type is a command in various command-line interpreters such as COMMAND.COM, cmd.exe, 4DOS/4NT and Windows PowerShell used to display the contents of specified files on the computer terminal. The analogous Unix command is cat.
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.
The command syntax for getting data from a device or file other than standard input is the input operator (<). Similarly, to send data to a device or file other than standard output is the output operator (>). To append data lines to an existing output file, one can use the append operator (>>).