Re: Determining the current path of a sourced script

[Paul Jarc]

frodo1990@yahoo.com (Tony) wrote:
> chet@nike.ins.cwru.edu (Chet Ramey) wrote in message 
> news:<020313135330.AA54220.SM@nike.ins.cwru.edu>...
>>      if [ -f /devel/bashrc ]; then
>>              DEVEL_BASHRC=/devel/bashrc
>>              . ${DEVEL_BASHRC}
>>      fi
>
> I don't get your point.

He's saying that bash has no built-in functionality to convey this
information, but if the sourcing script knows where the sourced script
is, it can do the job itself.

> unless your point is specifying a variable which is sure to be *at
> least* a relative path to the script.  Well... that's not even sure
> if the DEVEL_BASHRC directory has been put in the proper place
> within the user's PATH or if the user happened to install it in his
> $HOME directory, then DEVEL_BASHRC could possibly simply be defined
> as DEVEL_BASHRC=bashrc and the script would still have no clue where
> itself was.

Then the sourcing script should simply not do that.  With this method,
it's the sourcing script's responsibility to guarantee that the
variable contains a useful value.


paul