What does it mean and how do I do it: exit 0 fi ??

jacqrav · #1 (**permalink**) 03-06-2009

I use a Mac and need to 'echo' a code in >> /etc/hosts
Where is: /etc/hosts?
And how do I do : exit 0 Does : 'fi' mean something too?

Thanks for any help, Jacqrav

jim mcnamara · #2 (**permalink**) 03-06-2009

/etc/ is a directory; hosts is a filename.

Code:

ls /etc/hosts
ls -l /etc/hosts
cd /etc
ls hosts
ls -l hosts

Try that.

Code:

if [  < pretend syntax> some test returns true ] ; then
     < do something >
else
     < do a different thing >
fi

fi marks the end of an if statement.

so, "exit 0 fi" is only part of an if block.

exit 0 - means end with success
exit 1 - means end with failure - the 1 can be other non-zero numbers

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