#!/bin/bash
#!/bin/bash
   This may include other bash flow of control statementa.
#!/bin/bash
   $HOME/.bash_history contains these.
<b>HISTFILE</b> - name of history file. Default for bash is .bash_history.
Adjust these in your .bash_profile in your $HOME. 
Newer shells such as <b>bash</b> also allow users to use the arrow keys
<bash> provides editing features of <b>Emacs</b> to edit a command line.
#!/bin/bash
  http://wiki.bash-hackers.org/howto/redirection_tutorial
  This can be a whole block of bash code or even invoke other programs.
<li>Use <b>{}</b> to dereference values > 9. <b>bash</b>
<b>bash if</b>
#!/bin/bash
	find . -exec grep bash {} \; > found.txt 2> /dev/null
  In bash, noclobber has no effect.
  In <b>bash</b>, a &lt;d&gt; (EOF) will also stop input but you will
<b>bash select loop</b>
<li>Or put definition in .bashrc if you want it always available.
In <b>bash</b> - NO spaces between variable name, equal, and string being 
  array  - <b>bash</b> can create variable arrays.
In <b>bash</b>, you can unset a variable. Don't use $ dereference.
HISTFILE=/home/berezin/.bash_history  # where history stored between sessions
SHELL=/bin/bash
#!/bin/bash
<b>bash</b> has built-in version that takes no options. To run the standard
  - can be put in .bashrc, so set every time a command shell is run.
Note that bash has an internal form of test that may vary somewhat 
<li>with no argument - in bash, this will return you to your home directory.
  But can be defined in .bashrc 
  Technically, <b>bash</b> alias cannot take command line arguments.
  1. Place your alias definition in .bash_rc in your $HOME directory.
  2. Invoke .bash_rc from .bash_profile in your $HOME directory.
For indexed <b>for</b> loop, <b>bash</b> allows the use of braces {}
# --signal /bin/bash only. signal is a keyword.
  <b>bash kill</b> will also take job IDs in current shell.