iraf.net

Running what looks like a normal login.cl froma normal xgterm I get:

% cl
curdir:
ERROR: Cannot change directory to `'
called as: `chdir ()'
called as: `cl ()'
called as: `cl ()'
Error while reading login.cl file - may need to rebuild with mkiraf
Fatal startup error. CL dies.

In some iraf.net articles, I see the chdir problem
can have something to do with having pwd aliased in
some mode where a response is given. This appears to
not be the case for me:
% source .cshrc
% alias pwd

I have grepped around for "curdir" but have found nothing.

Thanks,
Steve

I think the problem is coming from the use of 'pwd' in the hlib$extpkg.cl script, i.e. the line



Try editing this file to explicitly make it "/bin/pwd" to avoid any possible alias/shell problems.

% vi /home/sco/Iraf_Things/iraf_sco/unix/hlib/extpkg.cl
I did three versions:

-------------------------------------------------------------------
Version1:
#printf ("!pwd\n") | cl () | scan (curdir) #---- suggested by MF Feb2014
printf ("/bin/pwd\n") | cl () | scan (curdir)
Result:
% cl
**: /bin/pwd
^
ERROR: syntax error
called as: `cl ()'
called as: `cl ()'
called as: `cl ()'
Error while reading login.cl file - may need to rebuild with mkiraf
Fatal startup error. CL dies.
-------------------------------------------------------------------

-------------------------------------------------------------------
Version2:
printf ("!/bin/pwd\n") | cl () | scan (curdir)
% cl
curdir:
ERROR: Cannot change directory to `'
called as: `chdir ()'
called as: `cl ()'
called as: `cl ()'
Error while reading login.cl file - may need to rebuild with mkiraf
Fatal startup error. CL dies.
-------------------------------------------------------------------

-------------------------------------------------------------------
Version3:
#printf ("!pwd\n") | cl () | scan (curdir) #---- suggested by MF Feb2014
printf ("/bin/pwd") | cl () | scan (curdir)
% cl
INTERNAL ERROR: parser gagged
called as: `cl ()'
called as: `cl ()'
called as: `cl ()'
Error while reading login.cl file - may need to rebuild with mkiraf
Fatal startup error. CL dies.
-------------------------------------------------------------------

In the first version, it appears I'm having trouble with space at
the end, but I'm not sure how to prevent that.

-Steve

The correct version is

printf ("!/bin/pwd\n") | cl() | scan (curdir)

where the '!' is an escape to the shell and the '\n' is required to complete the read.

Any chance you have a pathname with a space in it (e.g. "/home/Steve O/.....")?? Otherwise, what does /bin/pwd print from the normal unix prompt?

Again:
I try:
printf ("!/bin/pwd\n") | cl () | scan (curdir)
**** With same failure.

From my command line:
% echo $SHELL
csh
% /bin/pwd
/home/sco/Iraf_Things/test1

Thinking maybe there were problems with "_" I tried:
% /bin/pwd
/home/sco/t

This is the dir where I did mkiraf and have my login.cl

I still can't find a way to reproduce this using a variety of machines or login shells. As a test you could workaround the problem by temporarily renaming your hlib$extpkg.cl to skip this step of the login. Then, presuming you login successfully try issuing the commands manually, i.e.

cl\$this->_split2($m[0]) string curdir # to define the variable
cl\$this->_split2($m[0]) printf ("!/bin/pwd\n") | cl()
cl\$this->_split2($m[0]) printf ("!/bin/pwd\n") | cl() | scan (curdir)
cl\$this->_split2($m[0]) show curdir

Note that the 'cl' command itself is a shell script so I would check your .cshrc/.login or your .bashrc/.profile files to see whether they change directories automatically for some reason. Also, do a "which cl" to see whether you're using an aliased command or the symlink that was created when you ran the install script.

Sorry to necro your thread here, but it is the top hit on Google and the workarounds described here did not work for me.

Before:


Output:



Instead of relying on the string returned from /bin/pwd, I simply referenced the current directory from the shell environment:

After:


Output:


I can't speak for every shell on the planet but the major players, BASH, ZSH, *CSH all set $PWD automatically if you change your current working directory.