How to set ADR Base directory correctly on OracleDB on Linux?

Installed Oracle Database on Linux based OS. Listener is ok. But Oracle is not. (I changed all angular brackets to vertical, because parser not shows angular brackets)

ORA-48108: invalid value given for the diagnostic_dest init.ora parameter

ORA-48140: the specified ADR Base directory does not exist [/volumeX/app/oracle/product/11.2.0/xe/dbs/|ORACLE_BASE|]

ORA-48187: specified directory does not exist

Thats line in initXE.ora and init.ora:

diagnostic_dest='|ORACLE_BASE|'

Result of echo $ORACLE_BASE:

/u01/app/oracle

u01 is a symlink of volumeX directory.

How to solve this problem?

Thank You for Your time.