How to get info on which files are being loaded (and in which order) when I do source .cshrc?

[Angel de Vicente]

Hi all,

I use tcsh and have a .cshrc file that loads other file, this one another one,
with conditions, etc. I would like to have an easy way of loading the file, and
at the same time telling me which files are being loaded (I don't have write
permission in all those files, so modifying them is not an option).

I was trying yesterday a way to do this and I came up with a way that "seems" to
work, but I don't understand why! (Actually I think it should not work). I
create a file "source-mine" with the following:

----------------------

#!/bin/tcsh

echo "Loading file $1"

/bin/tcsh -c "alias source /home/angelv/SCRIPTS/source-mine ; source $1"

----------------------------------

Then I make an alias

alias source source-mine

And load the file

source .cshrc

I seem to get the correct behaviour, but why does it work? I get the following:

[angelv@guinda Perl-Expect]$ source ~/.cshrc
Loading file /home/angelv/.cshrc
Loading file /usr/glob/user/.cshrc
Loading file /usr/glob/user/SIE/.cshrc_SIE
[angelv@guinda Perl-Expect]$

I understande the first line ("Loading file /home/angelv/.cshrc"), after all I'm
doing the echo line, regardless of whether the file will be actually sourced or
not, but what I don't understand is why the file gets actually sourced (and
loads the files /usr/glob/user/.cshrc and /usr/glob/user/SIE/.cshrc_SIE), since
in the line

/bin/tcsh -c "alias source /home/angelv/SCRIPTS/source-mine ; source $1"

I'm aliasing the source command again, so I would expect that source $1 would
actually just execute this script again and I should get recursively:

[angelv@guinda Perl-Expect]$ source ~/.cshrc
Loading file /home/angelv/.cshrc
Loading file /home/angelv/.cshrc
Loading file /home/angelv/.cshrc
Loading file /home/angelv/.cshrc
[...]


Obviously I don't want this, and I'm happy with getting the observed behaviour,
but I don't understand why it works.

Any ideas?

Thanks a lot,
Angel de Vicente
--
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[url]http://www.iac.es/galeria/angelv/[/url]

PostDoc Software Support
Instituto de Astrofisica de Canarias

[Unregistered]

you call a new shell here
/bin/tcsh -c "alias source /home/angelv/SCRIPTS/source-mine ; source $1"
this will not create new alias at the level of the script, it will create it in the new shell, but it will exit immediately an the alias will be lost.