loading shared libraries: libsqlplus.so: cannot open shared object file

[kim@oracledb ~]$ sqlplus /nolog
sqlplus: error while loading shared libraries: libsqlplus.so: cannot open shared object file: No such file or directory

해결방법
[kim@oracledb ~]$ chmod -R a+rX $ORACLE_HOME

$ sudo chmod -R a+rX $ORACLE_HOME (관리자권한으로 실행)

# chmod -R a+rX /u01/app/oracle/product/10.2.0/db_1/bin/oracle (직접 실행)

관련파일
vi /etc/group
vi /etc/passwd

http://forums.oracle.com/forums/thread.jspa?threadID=347531