whats setenv in unix

Hi whats the setenv command in unix..??

i have set the oracle_home path as aa.ii.1 in kron_settings and
mentioned setenv oracle_path as aa.ii.2 in user settings.

Does this make any changes made to the path name of the oracle_home when i run a scripts in unix..???:frowning:

In C shell sets the value of an environment variable, example :

setenv PATH "/bin:/usr/bin:/usr/sbin:ucb/bin"

which sets the environment path to search for files in the /bin, /usr/bin, /usr/sbin and ucb/bin directory.