Setenv command in terminal.

Try chflags instead. SetEnv may not be part of the bash shell. If you have the Developer Tools installed look for SetFile which I believe is similar to SetEnv.

First this question is better asked in the Mac OS X Technologies > Unix Forum
<http://discussions.apple.com/forum.jspa?forumID=735>

'setenv' is a csh/tcsh shell built-in command.

The default Mac OS X shell is 'bash' which sets environment variables using

export VARIABLE_NAME="new value for the variable"

If you are just following some instructions you read somewhere, then either see if there is a bourne shell version (sh, bash, ksh, zsh, ...). Or translate the csh/tcsh specific commands to bourne shell varieties.

If you are a long time csh/tcsh user and want to use that shell, then try using the

chsh

command.