The system cannot be started !!!!!!!!!!!!

The system cannot be started !!!!!!!!!!!! -- Linux general technology-Linux technology and application information. For details, refer to the following section. /Etc/TPD/presession/default: registering your session with wtmp and utmp
/Etc/TPD/presession/default: running:/usr/bin/x11/sessreg-a-w/var/run/utmp-x "/var/TPD/: 0. xservers "-h" "-l": 0 "" oracle"
/Etc/profile: line 57 export command not found
/Etc/bashrc: line 8 id command not found
/Etc/bashrc: line 8 too required arguments
Failed to excute message bus daemon no such file or directory
Eof in queue-launch reading address from bus daemon
I cannot even log on to the root user. No command can be used to connect to the CRT. Command not found