Stream range of input to stdout.
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README.md

rng

rng streams input from a file or stdin to stdout.

It is the love child of sed -n '<START>,<END>p', head -n, and tail -n.

Table of Contents

Installation

You can install rng via Homebrew or manually.

Homebrew

brew tap nickolasburr/pfa
brew install rng

Source

git clone https://github.com/nickolasburr/rng.git
cd rng
make
make install

By default, files are installed to /usr/local You can install to an alternate location by passing PREFIX to make install.

For example, 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.

rng 7,15 Makefile

Skip the first 4 lines of input from a pipe.

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

Output lines 1-25 in Makefile.

rng ,25 Makefile

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

rng 5,10:17,22 main.c

Output all lines except 11-19 in main.c

rng ,10:20, main.c

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

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