bash condition if OS ?

[Chris F.A. Johnson]

On Wed, 7 Apr 2004, Lloyd Budd wrote:

> Hi,
>
> I am trying to combine some of my '.bash_profile's and '.bashrc's from
> various OSs into one file of each.  I have condition on hostname, but
> would like to generalize some parts on OS.  $OSTYPE is useful, though
> some OSs have the annoying habit of including version # in OSTYPE.  Is
> there a better variable to use?  Short of using an external prog I
> cannot seem to figure out how to  use Bash's reg exp to check for
> substring at beginning of the string. ?

   Bash's parameter exapnsion can remove prefixes and suffixes using
   pattern matching. To remove from the first digit to the end:

OS=${OSTYPE%%[0-9]*}

   Or use uname -s.

-- 
	Chris F.A. Johnson                      http://cfaj.freeshell.org
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