https://github.com/nickolasburr/rng

Print range of lines to stdout.
https://github.com/nickolasburr/rng

cat head sed stderr stdin stdout tail

Last synced: 16 days ago
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Print range of lines to stdout.

• Host: GitHub
• URL: https://github.com/nickolasburr/rng
• Owner: nickolasburr
• License: mit
• Created: 2018-06-16T03:50:00.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2024-05-17T00:04:23.000Z (6 months ago)
• Last Synced: 2024-08-01T05:16:29.144Z (3 months ago)
• Topics: cat, head, sed, stderr, stdin, stdout, tail
• Language: C
• Homepage:
• Size: 80.1 KB
• Stars: 31
• Watchers: 7
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.rst
  • License: LICENSE

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README

        
rng

===

.. contents::

   :local:

Description

-----------

``rng`` streams input from a file or ``stdin`` to ``stdout``.

It is the love child of ``sed -n ',p'`` and ``tail -n``.

Installation

------------

You can install ``rng`` via Homebrew or manually.

Homebrew

^^^^^^^^

.. code-block:: sh

   brew tap nickolasburr/pfa

   brew install rng

Source

^^^^^^

.. code-block:: sh

   git clone https://github.com/nickolasburr/rng.git

   cd rng

   make

   make install

By default, files are installed to ``/usr/local`` You can install elsewhere by passing ``PREFIX`` to ``make install``.

.. code-block:: sh

   make install PREFIX=/opt

Notes

-----

Certain range values can be omitted if they can be properly implied. To get multiple ranges, use the colon (``:``) operator.

Examples

--------

Get lines 7-15 in ``Makefile``.

.. code-block:: sh

   rng 7,15 Makefile

Skip the first 4 lines of input from a pipe.

.. code-block:: sh

   echo -e "First\nSecond\nThird\nFourth\nFifth" | rng 5

Output lines 1-25 in ``Makefile``.

.. code-block:: sh

   rng ,25 Makefile

Get lines 5-10 and 17-22 in ``main.c``.

.. code-block:: sh

   rng 5,10:17,22 main.c

Output all lines except 11-19 in main.c

.. code-block:: sh

   rng ,10:20, main.c

Get lines 16-27 of a text document from the web.

.. code-block:: sh

   curl -fsL https://www.w3.org/TR/2003/REC-PNG-20031110/iso_8859-1.txt | rng 16,27