Oracle 8.0.5 Standard for Linux installer problem

Hello,

I'm trying to install Oracle 8.0.5 Standard for Linux

I'm using Redhat Linux 6.1

When I start the oracle scripts such as oraenv and receive strange errors. Executing the 'if' and 'case' statements manually they work. See output below

Following the installation guide I found difficulties starting the installer.
See output below...

Can anyone please advise ????

[oracle_at_linux orainst]$ . oraenv
: command not found
: command not found

'h: syntax error near unexpected token `in sh: /home/oracle/product/8.0.5/bin/oraenv: line 22: `case ${ORACLE_TRACE:-""} in
'
[oracle_at_linux orainst]$ orainst
: not a legal variable name
: command not found
: not a legal variable name
: command not found
: not a legal variable name
: command not found
: No such file or directory0.5/orainst/.
: command not found
: not a legal variable name
: command not found
: not a legal variable name
: command not found
: not a legal variable name
: command not found
: not a legal variable name
: command not found
: not a legal variable name
: command not found
: not a legal variable name
: command not found
: not a legal variable name
: command not found

sh: syntax error near unexpected token `elif' 'h: orainst: line 49: `elif [ -f "$RCFILE2" ]; then Received on Thu Jan 13 2000 - 15:38:53 CST