heil v1.0

head | tail

An easy tool for output one line with a specified number from a file or one from each file

Usage

heil [options...] <lineno> <filename>
or
heil [options...] <lineno> <filenames...>

Lines are indexed from 1 (1, 2, 3, etc.)
The name of tool (heil) is a play on words head and tail, the names of utils
that previously had to be run through the pipeline to get the same result.

Options

• -<integer> – output also some lines before
• +<integer> – output also some lines after
• +-<integer> – output lines both before and after

If several options of the same sign are specified, they will add up to the total sum.
e.g.

heil +2 -4 +3 +-1 -5 90 myfile.sh

will output the line 90, 10 lines before (4 + 1 + 5) and 6 lines after (2 + 3 + 1).
You will see lines 80 to 96.
If the frame is outside real limits of the file, the excess is ignored.

Install

Just copy the heil.sh file to /usr/bin/heil