rng
streams input from a file or stdin
to stdout
.
It is the love child of sed -n '<START>,<END>p'
and tail -n
.
You can install rng
via Homebrew or manually.
brew tap nickolasburr/pfa
brew install rng
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
.
make install PREFIX=/opt
Certain range values can be omitted if they can be properly implied. To get multiple ranges, use the colon (:
) operator.
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/2003/REC-PNG-20031110/iso_8859-1.txt | rng 16,27