How do I generate a really cool signature?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

First there are the GNU textutils. They are propably already installed
on your system:

 cat, tac, fmt, fold, head, tail, cut, expand, unexpand

Then there are some of my own tools in this directory:

- left.pl    aligns a text to the left
- right.pl   aligns a text to the right
- hcenter.pl aligns a text to the center (horizontally)

- top.pl     aligns a text to the top
- bottom.pl  aligns a text to the bottom
- vcenter.pl aligns a text to the bottom (vertically)

- indent.pl  moves a text to the right

- leftblock.pl, rightblock.pl and hcenterblock.pl do the same as
  left.pl, right.pl and hcenter.pl - the difference is that they don't
  work line per line but treat the input as a whole block.

All these tools are called with this syntax:

  command [width/height/movement] [inputfile1] [inputfile2] [inputfile...]

There are two special tools:

- eatlinefeed.pl removes the final linefeed of an input file.
- overlay.pl puts multiple files on top of each other. Only space
  characters will be overwritten by later files, so the first file is
  "on top".

The syntax for these is:

  command [inputfile1] [inputfile2] [inputfile...]

Inputfile is directly passed to the Perl open()-function. This allows
some nice tricks. Instead of

/usr/bin/uptime | indent.pl 5 -

you can also write:

indent.pl 5 "/usr/bin/uptime|"

No go and use these tools. Some ideas for this are found in the
examples directory.