How do I change my Ruby version using RVM?

Question

I am not able to switch the current Ruby version:

➜  ~  rvm list

rvm rubies

   ruby-1.9.2-p290 [ x86_64 ]
   ruby-1.9.3-p0 [ x86_64 ]

➜  ~  rvm use ruby-1.9.3-p0

RVM is not a function, selecting rubies with 'rvm use ...' will not work.

are you sure you installed rvm correctly ? what OS are you using ? — lesce, Dec 29 '11 at 04:33
I had a similar problem by installing rvm with apt-get on Ubuntu 11.10, I had to remove it and reinstall it with `$ bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer) ` — lesce, Dec 29 '11 at 04:41
Do you have the RVM load function in your shell's startup script? `[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"` is the code to use. If you have RVM installed in your path, but you don't have that in your startup script, you can get the `RVM is not a function` error. — Michelle Tilley, Dec 29 '11 at 04:43
This solution works for me - https://rvm.io/integration/gnome-terminal/ — gotqn, Mar 26 '13 at 20:31

score 124 · Accepted Answer · edited Sep 15 '14 at 20:03

124

Fixed it. I needed to add:

[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"  # This loads RVM

to .zshrc

edited Sep 15 '14 at 20:03

the Tin Man

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answered Dec 29 '11 at 04:43

donald

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score 58 · Answer 2 · edited Jan 18 '16 at 07:09

58

This happened to me too. I had:

export PATH=~/.rvm/bin:$PATH

Added in my .bashrc.

All I had to do was add another

[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"

to the same file and it worked! Of course, you have to restart your terminal after that.

edited Jan 18 '16 at 07:09

Arslan Ali

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answered Feb 01 '12 at 11:57

The Mitra Boy

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i had this same line (the [[ -s "$HOME/...) in my ~/.bash_profile and that didn't seem to "take" when i opened a new terminal...but when i added the line below the PATH line in the ~/.bashrc, it did work -- meaning, i could type rvm use 1.9.3 and it would immediately recognize rvm as a command without me needing to first type source ~/.bash_profile -- i'm not a linux person, so this confuses me, but i'm glad this got it working. perhaps someone can clarify my confusion. – TimDog Feb 19 '12 at 16:53
that's great, i just put this line in ~/.bashrc, it works. but i also don't know why. – Keating Mar 21 '12 at 06:28
Yeah its working. But every time I restart my machine I have to give above mentioned commands. If I do not provide the commands it says rvm is not a function. – Apurva Mayank Mar 22 '12 at 05:42

score 11 · Answer 3 · edited Sep 15 '14 at 20:03

11

Your shell doesn't know about the RVM function. After you install it, it tells you how to take care of this. Or go to the install page on the RVM site and check out the section titled "2. Load RVM into your shell sessions as a function"

Run this once to add the line that loads rvm into your ~/.bash_profile:

$ echo '[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function' >> ~/.bash_profile

or manually add it yourself. (Note that on some systems, you will want to put it in other places, for example on my system, Mac OSX Lion, I put it in ~/.profile)

edited Sep 15 '14 at 20:03

the Tin Man

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answered Dec 29 '11 at 04:45

Joshua Cheek

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I'm using OS X Snow Leopard, putting that line in my .profile did the trick for me. – Heldraug Jan 11 '12 at 19:55

score 9 · Answer 4 · edited Mar 11 '12 at 00:31

9

(Kubuntu 11.10) The ~/.bash_profile is now called ~/.profile

echo '[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function' >> ~/.profile
source ~/.profile
rvm info # And now the fields display

edited Mar 11 '12 at 00:31

docwhat

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answered Mar 03 '12 at 00:51

Lindsay

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score 6 · Answer 5 · edited Sep 15 '14 at 20:04

6

To Change the Default Version of ruby:

In Ubuntu 11.10
please change your GNOME terminal setting :

Go to Terminal and then follow the following instructions:

1.  Edit > Profile Preferences
2.  Open Title and Command Tab               
3.  Check Run Command as a login Shell 
4.  Restart terminal

Run this command on terminal:

rvm --default use ruby_Version

edited Sep 15 '14 at 20:04

the Tin Man

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answered Jul 23 '12 at 05:16

Mayank Raipure

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score 5 · Answer 6 · edited Sep 15 '14 at 20:02

5

To add all RVM functionality to your .bash_profile you should use following command:

echo '[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function' >> ~/.bash_profile

After that you should reload the current shell or open a new terminal session and type the following command to reload .bash_profile:

source .bash_profile

edited Sep 15 '14 at 20:02

the Tin Man

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answered Jan 19 '12 at 10:00

Недоброе Привидение

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score 4 · Answer 7 · edited Sep 15 '14 at 20:04

4

The above solution will only work, if RVM is installed for the current user. A more general solution would use the RVM path variable:

# The following code loads RVM as user or system install:
[[ -s "$rvm_path/scripts/rvm" ]] && . "$rvm_path/scripts/rvm"

edited Sep 15 '14 at 20:04

the Tin Man

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answered May 22 '13 at 13:06

user2408574

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`rvm_path=/home/myuser/.rvm . /home/myuser/.rvm/scripts/rvm` – Jose Alban Feb 16 '17 at 12:10

score 3 · Answer 8 · edited May 13 '12 at 23:42

3

I just had to invoke source ~/.bash_profile

edited May 13 '12 at 23:42

EdChum

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answered Apr 20 '12 at 06:08

Behzad

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score 3 · Answer 9 · edited Jul 23 '12 at 06:48

On a clean install of Ubuntu 12.04 I ran into the same issue. The RVM installer creates or appends to a file called ~/.bash_login the necessary bit of code to avoid the original problem:

[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session *as a function*

However this does not seem to get invoked. Adding it to ~/.bashrc resolved the issue for me.

score 1 · Answer 10 · answered Jun 08 '12 at 12:49

1

Installing RVM, See here http://octopress.org/docs/setup/rvm/

answered Jun 08 '12 at 12:49

hahakubile

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Don't use non-authoratative sources for installing RVM. The [RVM installation page](http://rvm.io/rvm/install) specifically says: "Note that that any outside tutorials are NOT supported whether they work or not. Tutorials are great, however we have spent massive amounts of man hours debugging the installation process. Please use the install process(es) from this site only, as this is the only supported installation types and methods." – the Tin Man Sep 15 '14 at 20:01

score 1 · Answer 11 · answered Aug 28 '14 at 16:36

In my case on Ubuntu, the entry in ~/.bashrc had:

 [[ -s "$HOME/.rvm/scripts/rvm" ]] && ."$HOME/.rvm/scripts/rvm" # BAD

instead of:

 [[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # WORKING

Notice the missing space between . and "$HOME.

Also, if this is the problem, you should also be noticing an error on top when you start your terminal.

score 0 · Answer 12 · answered Feb 10 '15 at 16:59

0

You need to change your terminal emulator preferences to allow login shell. Sometimes it is required to use /bin/bash --login as the command.

answered Feb 10 '15 at 16:59

Moamen Abdelwahed

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score 0 · Answer 13 · edited Sep 15 '14 at 20:04

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I had a global install of RVM, which runs /etc/profile.d/rvm.sh. However, that script requires the BASH_VERSION or ZSH_VERSION to be set. I was running from crontab, which uses "sh".

I created a wrapper script that uses /bin/bash to source /etc/profile.d/rvm.sh.

edited Sep 15 '14 at 20:04

the Tin Man

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answered Feb 22 '12 at 23:09

dfrankow

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How do I change my Ruby version using RVM?

13 Answers13

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