Typical Oracle profile file on Unix

# .oracle10g


### Oracle specific setup
ORACLE_HOME=/opt/oracle10g/instantclient_10_2
TNS_ADMIN=/opt/oracle10g/instantclient_10_2
NLS_LANG=_.WE8ISO8859P1

export ORACLE_HOME TNS_ADMIN NLS_LANG


LD_LIBRARY_PATH=$ORACLE_HOME:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH
PATH=$ORACLE_HOME:$PATH

export PATH
### End Oracle specific setup

Typical Oracle profile file on Unix

# .oracle10g


### Oracle specific setup
ORACLE_HOME=/opt/oracle10g/instantclient_10_2
TNS_ADMIN=/opt/oracle10g/instantclient_10_2
NLS_LANG=_.WE8ISO8859P1

export ORACLE_HOME TNS_ADMIN NLS_LANG


LD_LIBRARY_PATH=$ORACLE_HOME:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH
PATH=$ORACLE_HOME:$PATH

export PATH
### End Oracle specific setup

Perl Internals - Simon Cozens

http://www.faqs.org/docs/perl5int/

How Hashes Really Work

Great article to understand Hashes in PERL