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In computer programming, a usage message or help message is a brief message displayed by a program that utilizes a command-line interface for execution. This message usually consists of the correct command line usage for the program and includes a list of the correct command-line arguments or options acceptable to said program.
curl is a command-line tool for getting or sending data including files using URL syntax. curl provides an interface to the libcurl library; it supports every protocol libcurl supports. [14] curl supports HTTPS and performs SSL certificate verification by default when a secure protocol is specified such as HTTPS.
RTSP 2.0 (RFC7826) defines several methods for encryption and introduces a new rtsps:// URL and many of these have been incorporated into RFC2326 RTSP 1.0 Clients and Servers. RTSPS URL (using the rtsps:// URL) - This method uses a TLS Socket (default of Port 322) to establish an encrypted connection between the RTSP client and the RTSP Server.
Apache Tomcat (called "Tomcat" for short) is a free and open-source implementation of the Jakarta Servlet, Jakarta Expression Language, and WebSocket technologies. It provides a "pure Java" HTTP web server environment in which Java code can also run. Thus it is a Java web application server, although not a full JEE application server.
An MS-DOS command line, illustrating parsing into command and arguments. A command-line argument or parameter is an item of information provided to a program when it is started. [23] A program can have many command-line arguments that identify sources or destinations of information, or that alter the operation of the program.
Linux command-line tools with similar functions include xdg-open [8] and run-mailcap. On Cygwin, the command is implemented as the cygstart executable. [9] In PowerShell, the Invoke-Item cmdlet is used to invoke an executable or open a file. [10] On Apple macOS and MorphOS, the corresponding command is open. [11] On Stratus OpenVOS it is start ...
The -n option to xargs specifies how many arguments at a time to supply to the given command. The command will be invoked repeatedly until all input is exhausted. Note that on the last invocation one might get fewer than the desired number of arguments if there is insufficient input. Use xargs to break up the input into two arguments per line:
" If a user invoke RUNCOM without any arguments it prints some instructions on how to use it and stops, returning the user to the supervisor's (system's) command line. RUNCOM )" On modern Linuxes, information on shell built-in commands can be found by executing help , help [built-in name] or man builtins at a terminal prompt where bash is ...