Tcsh does not work after upgrade from 31 to 33 (A c-shell script working in Fedora 31 does not work in 33, 34)

[ihcho (Il-Hyun Cho)]

Hello,

After upgrading Fedora 33 from 31, I cannot enter csh or tcsh.
I can only use bash shell, but any c-shell script cannot be compiled (csh -f a script).

The error message is as follow,
Division by 0.

Now I upgrade 34 but the problem is not solved.
I removed tcsh and reinstall but the broblem is not solved.

How can I solve it ?

Many thanks,
Il-Hyun

[mattdm (Matthew Miller)]

Can you post an example script which shows the problem? Does the problem occur if you create a new account with default dot files and run a minimal test there?

[simmon (simmon - Great People OS)]

you can install tcsh and easily change shell

also run “chsh” command and will be use tcsh shell.

[root@nalkal simmon]# chsh 
Changing shell for root.
New shell [/bin/bash]: /bin/tcsh
Shell changed.
[root@nalkal simmon]# exit
exit
[simmon@nalkal ~]$ su
암호:
[simmon@nalkal simmon]# echo $shell
/bin/tcsh

reboot or relogin…will be use tcsh shell !

Have a nice day!

[ihcho (Il-Hyun Cho)]

Dear Matthew Miller,

Thank you for the comment.
With the existing account and root,

[ihjo@localholt ~] tcsh
Division by 0.

[root@localholt ~] tcsh
Division by 0.

But with a new account by useradd -m -s /bin/tcsh ihcho
It seems to be working, but there’s no .tcshrc file on the home directory.

I will try to source a scrip in the old .tcshrc line by line.

Thank you for the comment.

[ihcho (Il-Hyun Cho)]

Dear Great Peoples OS,

I did it several times.
The error message was “Division by 0.”.

Thank you for the comment.

[ihcho (Il-Hyun Cho)]

The following script gives “Division by 0.”.
In Fedora 31, there was no problem.

######### set default top level for ALL SSW (top=SSW_XXX) ####################
set upall=($upallinstr)
set lowall=($SSW_INSTR_ALL)

while ($#upall >= 1)
set inname=$upall[1]:t
set inpath=“/”$lowall[1]:t
set mission=“/”$lowall[1]:h
if ($mission == $inpath) then
set mission=“”
endif
eval setenv “SSW_$inname” “$SSW$mission$inpath”
shift lowall
shift upall
end

[simmon (simmon - Great People OS)]

What are you talking about?

[ihcho (Il-Hyun Cho)]

[vgaetera (Vladislav Grigoryev)]

@ihcho

It seems to be working, but there’s no .tcshrc file on the home directory.

You can safely rename/remove that file.
You don’t really need it to use the shell.

[ihcho (Il-Hyun Cho)]

@ihcho

if ($mission == $inpath) then
set mission=“”
endif

I commented above three lines.
Now it is working well.
Thank you for your helpful comments.

[simmon (simmon - Great People OS)]

What does this shell script have to do with the behavior and use of the tcsh shell?

[ihcho (Il-Hyun Cho)]

I don’t know well.
But they give the message “Division by 0.” which did not appear in Fedora 31.