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---
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toc: no
...
==================
BASH
==================
Job Control
The syntax for "job number" or "JOBSPEC" (when using ``kill`` or similar) is ``%4`` or ``%5``.
Startup
-------
``bash`` by default takes a very long time to initialize because the
auto-completion scripts are loaded multiple times; disable this in
``~/.bashrc``?
Piping
---------
You can pipe both ``stdout`` and ``stderr`` together either to a file or two another command::
grep --asdf >& /some/file
grep --asdf |& less
Network Access
----------------
You can directly access network sockets as if they were files from bash using
the virtual devices ``/dev/tcp/HOSTNAME/PORT`` and ``/dev/udp/HOSTNAME/PORT``.
printf
------
The ``printf`` command is much more powerful than "echo".
Prelude
-------
`set`:
-e fail on error
-u fail if variable not set in substitution
-o pipefail fail if part of a '|' command fails
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