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In addition to running based on a specified number of arguments at a time, one can also invoke a command for each line of input with the -L 1 option. One can use an arbitrary number of lines at a time, but one is most common. Here is how one might diff every git commit against its parent. [9] $
Frequently used commands for Git's command-line interface include: [67] [68] git init, which is used to create a git repository. git clone [URL], which clones, or duplicates, a git repository from an external URL. git add [file], which adds a file to git's working directory (files about to be committed).
This command instructs The Webalizer to analyze the log file access_log, run in the incremental mode (-p), interpret the log as a CLF log file (-F), use the domain name en.wikipedia.org for report links (-n) and produce the output subdirectory of the current directory. Use the -h option to see the complete list of command line options.
A command-line system may require paper or online manuals for the user's reference, although often a help option provides a concise review of the options of a command. The command-line environment may not provide graphical enhancements such as different fonts or extended edit windows found in a GUI.
getopt is a system dependent function, and its behavior depends on the implementation in the C library. Some custom implementations like gnulib are available, however. [6]The conventional (POSIX and BSD) handling is that the options end when the first non-option argument is encountered, and that getopt would return -1 to signal that.
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.
dd is a command-line utility for Unix, Plan 9, Inferno, and Unix-like operating systems and beyond, the primary purpose of which is to convert and copy files. [1] On Unix, device drivers for hardware (such as hard disk drives) and special device files (such as /dev/zero and /dev/random) appear in the file system just like normal files; dd can also read and/or write from/to these files ...
Sends an EOF marker, which (unless disabled by an option) closes the current shell (equivalent to the command exit). (Only if there is no text on the current line) If there is text on the current line, deletes the current character (then equivalent to the key Delete). Ctrl+e : moves the cursor to the line end (equivalent to the key End).