Messed up the root line passwd file now unable to login as root

[hawki]

New Linux user
I edited the passwd file to modify the default shell for root from bash to tcsh
now when I try to login to root it gives me the following error:

"su: /bin/tcsh : No such file or directory"

Thanks

[reed9]

Is /bin/tcsh the correct path? Is tcsh installed?

What is the output of

which tcsh

I recommend using the chsh command to change the default shell.

su -c 'chsh -s /bin/bash root'

[hawki]

Is /bin/tcsh the correct path? Is tcsh installed?

What is the output of

which tcsh

I recommend using the chsh command to change the default shell.

su -c 'chsh -s /bin/bash root'

which tcsh returns:
/bin/tcsh

I tried the
su -c 'chsh -s /bin/bash root'
command and the response was:
su: /bin/tcsh : No such file or directory
Thanks for your help