Re: Bash scripting

[Jereme Corrado <jereme@rmcnet.cc>]

Hi Jeff,
        
Jeff Elkins <jeffelkins@earthlink.net> writes:
> ARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e 
> s/arm.*/arm/ -e s/sa110/arm/
> 
> I'm working on polishing my meagre shell scripting skills and would
> appreciate some feedback on the line above, quoted from the kernel Makefile.

[...]

> 2. As far as comparisons go, if I wanted to determine if a string contained
> ".xyz" or ".abc" would that be a variant of the fragment above?

The fragment above is a series of sed statements used to normalize the
machines architecture.  The `.' is a regular expression that matches
any single character, s/// is the substation operator, so

sed -e 's/i.86/i386/'

would match "i386", "i486", "i586" and replace it with "i386", that is
what I meant by "normalize".  As it were, it would match "i"<any
single character>"386".  I added the quotes around the sed expression
in case you wanted to try it at the CL.



-jereme

-- 
+--------------------------------------------------------------+
Jereme Corrado <jereme@restorative-management.com>
System Administrator
Restorative Management Corp.

gpg: 1024D/9C39E1F0