Install Apex into Oracle XE on CentOS

apex_install.sh

# install (or upgrade) Apex on Oracle XE on CentOS

# change to the "oracle" user (created as part of XE installation)
su - oracle

# assumes you have already copied Apex installation file to server
cd /u01/download
unzip apex_5.0.1_en.zip
cd apex

# start sqlplus and run the installation script
sqlplus /nolog

# connect sys as sysdba

# -- run the following for a full installation (including the Application Builder)
# @apexins.sql SYSAUX SYSAUX TEMP /i/
# -- run the following for a runtime-only installation (for production environments)
# @apxrtins.sql SYSAUX SYSAUX TEMP /i/

# check the installation log (last 200 lines)
tail -n 200 *.log 

# rename the folder so we can have multiple versions downloaded (apex501, apex502, apex60, etc)
cd /u01/download/
mv apex apex501

# now remember to copy the Apex images files into the web server "/i/" folder