Re: bash scripts: how to determine directory of 'source'd file

[Randy Belk <randy.belk@gmail.com>]

michael wrote:
> On Tue, 2006-01-31 at 10:16 -0500, Juergen Fiedler wrote:
>   
> > On Tue, Jan 31, 2006 at 02:26:27PM +0000, michael wrote:
> >     
> > > Presuming I have a file setEnvVars.sh that I wish to source, 
> > >   . path/setEnvVars.sh
> > > How do I, within the script, determine the actual directory within which
> > > the setEnvVars.sh file sits? The sourcing seems to disallow me access to
> > > $0 etc
> > >
> > > thanks, M
> > >       
> > If I understand your question correctly, the '$_' variable should do
> > the trick.
> >     
>
> doesn't seem to:
> michael@ratty:~/models-3/CMAQ-4.5/scripts$ head ../defineEnvVars
> #!/bin/bash
> echo $_
>
> michael@ratty:~/models-3/CMAQ-4.5/scripts$ . ../defineEnvVars
> ../defineEnvVars
> michael@ratty:~/models-3/CMAQ-4.5/scripts$ cd cctm
> michael@ratty:~/models-3/CMAQ-4.5/scripts/cctm$ . ../../defineEnvVars
> cctm
>
>
> what I am trying to do in the script is get it to work out the directory
> in which defineEnvVars live, irrespective of which directory I am when I
> run 
>  . [path]/defineEnvVars
>
> thanks, michael
>
>
>
>   
I think you might want this.

appdirname=`pwd`
rcname=backup/include
echo $appdirname"/"$rcname

But the following would be better if all the contents of the app are in 
the same directory...

rcname=`pwd`/backup/include
echo $rcname

Hope this helps....