Re: Bash is backwards, or I can't read a man page.

[Earnie Boyd <earnie_boyd at yahoo dot com>]

"Matthew O. Persico" wrote:
> 
> According to what I get from the manpage, the order of execution for a
> login shell should be:
> 
> /etc/profile
> ~/.bash_profile
> ~/.bashrc
> 
> When I login, I see
> /etc/profile
> ~/.bashrc
> ~/.bash_profile
> 
> because /etc/profile tests for ./.bashrc and runs it itself.
> 
> Is this a bug or a feature? Does someone have a clearer explanation of
> what stuff goes into .bash_profile and what goes into .bashrc and when
> they get called? Maybe it's just me - I can't grok this in ksh using the
> O'Reilly book either.
> 

IMO, the test for ~/.bashrc should go into the ~/.bash_profile file. 
Bash doesn't grok the ~/.bashrc file during --login so it needs to get
sourced by a profile file.  Since more than one shell groks the
/etc/profile file then specifics for a particular brand of shell should
be kept to a minimum.  Once upon a time Cygwin only shipped with one
interactive shell, so when setup.exe, which is what creates /etc/profile
in the first place, was created the designers chose to test for
~/.bashrc globally because it would cause less mail list traffic.

Now what should go in profile and what should go in bashrc?  The profile
should be used define variables and setup a login account that any shell
can grok.  The bashrc should contain bash specific things such as
aliases.  Note the /etc/profile and ~/.bash_profile isn't read during
non-login execution because those things should be passed to the child
while alias won't be.

For further reading check out the info file in /usr/info.

Earnie.

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