After installing Oracle XE on Linux, and especially Ubuntu, you might find yourself with issues opening SQL*Plus and other tools.
“sqlplus: error while loading shared libraries: libclntsh.so.11.1: cannot open shared object file: No such file or directory”
There are many possible reasons for that, so check the following:
Set your paths correctly
Perform the commands:
oracle@VirtualBox:~$ echo $ORACLE_HOME /home/oracle/app/oracle/product/11.2.0/dbhome_1 oracle@VirtualBox:~$ echo $LD_LIBRARY_PATH /home/oracle/app/oracle/product/11.2.0/dbhome_1/lib
If these are empty, go to your Oracle home and enter:
sudo ./root.sh
This wil set all the environment variables. Sometimes you get the error
./root.sh: 1: /home/oracle/app/oracle/product/11.2.0/dbhome_1/install/utl/rootmacro.sh: /bin/awk: not found ./root.sh: 1: /home/oracle/app/oracle/product/11.2.0/dbhome_1/install/utl/rootmacro.sh: /bin/awk: not found ./root.sh: 127: [: !=: unexpected operator
When this happens, enter “which awk” to find the path where awk is located, edit the file <Oracle_home>/install/utl/rootmacro.sh, look for the line
AWK=/bin/awk
And replace the path with the output from the “which awk” command.
Now all your paths and environment settings should be correct.
If not, this might me a good time to reinstall the database software. Chances are some files are corrupted.
