I am using the following guide:
Under the heading “Using rbenv” the first line instruction is “cd”
What is the purpose of this command?
Hi McHenry,
from your question I gather that you should perhaps start by going
through one/two articles on the basic Linux commands - just to keep you
a-float 
ls list directory
cd change directory
sudo execute som command as another user (superuser unless otherwise
specified)
pushd cd and remember where you were at
popd cd to the remembered directory prior to the pushed one
cheers
Walther
Den 05/08/2014 kl. 13.43 skrev McHenry [email protected]:
In case you asked about the meaning of the command being used there,
instead of what it does, it might be, correct me if I’m wrong, just to
make
sure you’re in your home directory, just to make it is easier to follow.
Regards,
Diego Dillenburg Bueno
2014-08-05 8:52 GMT-03:00 Walther D. [email protected]:
Hi Walther and thank you once again for your prompt reply. My questions
was
probably not as clear as it could have been.
What I meant to ask was what is the purpose of the “cd” command on a
line
without any further parameters?
I understand the “cd” command however the command alone makes no sense?
On 5 August 2014 13:08, McHenry [email protected] wrote:
Hi Diego. The command “cd ~” returns the user to their home directory
however “cd” alone does nothing as far as I know.
On Ubuntu (at least) it takes you to your home directory. It is
probably my most used command. Try it.
Colin
Hi Diego. The command “cd ~” returns the user to their home directory
however “cd” alone does nothing as far as I know.
Hi McHenry & Diego
according to (How to use the cd command, by The Linux Information Project (LINFO)) cd on its own does alternate
between two directories like
~ $ cd /tmp
/tmp $ cd
~ $ cd
/tmp $
and so on …
However! I’ve tested it on Mac and Fedora 20 – and the shell (Bash on
Fedora) returns the user to the $HOME in both environments (hmmm)
Good spot, Diego!
Cheers,
Walther
Den 05/08/2014 kl. 14.08 skrev McHenry [email protected]:
“Hello World” 
You learn something new everyday.
After tears of using Ubuntu since Dapper Drake I never knew this. I have
always used cd ~ to return to the home directory.
Thanks for the insight. (back to my Rails installation now…)