This bug is true on centos and on redhat – on redhat forum.
After updating to kernel version 3.10.0-1062.el7.x86_64 the shell prompt has changed from “name@host: /full/path” to “[name@host current_directory]$”.
log in as a user whose default shell is csh or tcsh, I get a syntax error.
new kernel does not parse if clauses as previous , no change in system wide /etc/tcsh or /etc/cshrc which no longer parse as before.