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  2. Standard streams - Wikipedia

    en.wikipedia.org/wiki/Standard_streams

    Standard input is a stream from which a program reads its input data. The program requests data transfers by use of the read operation. Not all programs require stream input. For example, the dir and ls programs (which display file names contained in a directory) may take command-line arguments, but perform their operations without any stream ...

  3. File descriptor - Wikipedia

    en.wikipedia.org/wiki/File_descriptor

    File descriptors for a single process, file table and inode table. Note that multiple file descriptors can refer to the same file table entry (e.g., as a result of the dup system call [3]: 104 ) and that multiple file table entries can in turn refer to the same inode (if it has been opened multiple times; the table is still simplified because it represents inodes by file names, even though an ...

  4. Pipeline (Unix) - Wikipedia

    en.wikipedia.org/wiki/Pipeline_(Unix)

    The -in place of a filename causes comm to use its standard input (from the pipe line in this case). sort /usr/share/dict/words sorts the contents of the words file alphabetically, as comm expects, and <( ... ) outputs the results to a temporary file (via process substitution), which comm reads. The result is a list of words (lines) that are ...

  5. read (system call) - Wikipedia

    en.wikipedia.org/wiki/Read_(system_call)

    The file is identified by a file descriptor that is normally obtained from a previous call to open. This system call reads in data in bytes, the number of which is specified by the caller, from the file and stores then into a buffer supplied by the calling process. The read system call takes three arguments: The file descriptor of the file.

  6. SciPy - Wikipedia

    en.wikipedia.org/wiki/SciPy

    SciPy (pronounced / ˈ s aɪ p aɪ / "sigh pie" [2]) is a free and open-source Python library used for scientific computing and technical computing. [3]SciPy contains modules for optimization, linear algebra, integration, interpolation, special functions, FFT, signal and image processing, ODE solvers and other tasks common in science and engineering.

  7. Line (text file) - Wikipedia

    en.wikipedia.org/wiki/Line_(text_file)

    The term comes directly from physical printing, where a line of text is a horizontal row of characters. Depending on the file system or operating system being used the number of characters on a line may either be predetermined or fixed, or the length may vary from line to line.

  8. Command-line interface - Wikipedia

    en.wikipedia.org/wiki/Command-line_interface

    This provides the interfaces of piping, filters and redirection. Under Unix, devices are files too, so the normal type of file for the shell used for stdin, stdout and stderr is a tty device file. Another command-line interface allows a shell program to launch helper programs, either to launch documents or start a program.

  9. Line of credit - Wikipedia

    en.wikipedia.org/wiki/Line_of_credit

    A line of credit is a credit facility extended by a bank or other financial institution to a government, business or individual customer that enables the customer to draw on the facility when the customer needs funds. A financial institution makes available an amount of credit to a business or consumer during a specified period of time.