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

Question

List the ruby versions

console:~$ rvm list

rvm rubies

ruby-2.0.0-p481 [ i686 ]

# => - current
# =* - current && default
#  * - default

Try to use a specific version of ruby

console:~$ rvm use 2.0.0

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

You need to change your terminal emulator preferences to allow login shell.
Sometimes it is required to use `/bin/bash --login` as the command.
Please visit https://rvm.io/integration/gnome-terminal/ for a example.

What terminal do you use? Setting the login shell differs per terminal application. Alternatively you could `source $HOME/.profile` or `source $HOME/.bash_profile` where rvm has probably defined its init line. — Michael Berkowski, May 30 '14 at 20:37
You need to run your console as a login shell. What system do you have? — BroiSatse, May 30 '14 at 20:38
You could just have typed /bin/bash --login from your terminal. and then give rvm use 2.0.0.. — inquisitive, Dec 11 '14 at 04:44
In case you are wondering what the difference between a login vs non-login shell: http://unix.stackexchange.com/questions/38175/difference-between-login-shell-and-non-login-shell — stephenbez, Mar 05 '15 at 07:33
@BroiSatse, why does RVM require a login shell?. Please take a look at https://stackoverflow.com/questions/61277999/why-does-rvm-use-command-require-suggest-a-login-shell — Jaime Hablutzel, Apr 17 '20 at 18:13

score 286 · Accepted Answer · answered May 30 '14 at 20:42

286

Your console is not running as a login shell and hence have no access to rvm function. If you are running Ubuntu, you can:

Open console
Select Edit -> Profile Preferences
Select tab: Title and Command
Check box 'Run command as a login shell'
Restart terminal

answered May 30 '14 at 20:42

BroiSatse

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I did that but did not work. The problem persists . How to remove rvm completely? – user3678471 May 30 '14 at 21:13
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Of course you will need the following in your ~/.profile [[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" – nadersoliman Sep 03 '14 at 04:30
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I think this could be explained more ― "and hence have no access to rvm function" – matanster Sep 17 '16 at 06:15
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It worked. Bu can you tell the difference between those two? – Krishnadas PC Mar 14 '17 at 16:22
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What works for me on OSX is `/bin/bash --login; source ~/.rvm/scripts/rvm; rvm use 2.4.0` – Jayesh Sep 16 '17 at 12:11
for centos 7.1 or any centos in ~/.bashrc file, past: source ~/.rvm/scripts/rvm – vidur punj Nov 16 '17 at 08:09
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if your are using `zsh-terminal` add the rvm scripts path in **~/.zshrc** instead of *~/.bashrc*: `[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"` – Raj Nov 05 '19 at 06:25

score 152 · Answer 2 · edited Jan 08 '15 at 15:30

152

Type bash --login from your terminal. And then give rvm use 2.0.0

edited Jan 08 '15 at 15:30

Martin Tournoij

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answered Dec 11 '14 at 04:45

inquisitive

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@AdityaPednekar So, sometimes reading the error/console message actually helps, `RVM is not a function, selecting rubies with 'rvm use ...' will not work. You need to change your terminal emulator preferences to allow login shell. Sometimes it is required to use /bin/bash --login as the command. Please visit https://rvm.io/integration/gnome-terminal/ for a example.` specifies the details. – inquisitive Jul 10 '18 at 10:02
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Yeah, It helps realize how unreasonably complex it is to use `rvm` compared to `nvm` – Jannis Ioannou Apr 30 '20 at 16:09
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Thanks this worked for me and it saved lot of time. – Jagadeeswar Mar 25 '21 at 08:26

akbarbin · Answer 3 · 2016-01-18T03:34:12.170

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It seems like your rvm does not load ".bash_profile" properly. I have done to fix it in MAC OS X or Ubuntu 14.04 by opening terminal and write:

source ~/.rvm/scripts/rvm

edited Jan 18 '16 at 03:34

answered Oct 29 '15 at 02:36

akbarbin

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In my case I was on new m1 macos with zsh as default shell and had to instead add that line to `.zprofile` – Andrew Allaire Jul 08 '22 at 15:15

score 59 · Answer 4 · edited Dec 21 '19 at 04:24

59

My env is OSX Yosemite. Had the same issue .... solved by adding the following

1) edit and add the following line to .bash_profile file.

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

2) Restart terminal and try RVM command again

edited Dec 21 '19 at 04:24

Esmaeil MIRZAEE

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answered Jan 16 '15 at 18:03

John Varghese

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You can add this to ~/.bashrc or ~/.zshrc (if your are using zsh) too. – adridev Feb 04 '15 at 20:33
If you don't want or cannot restart the terminal, you can run `source ~/.bash_profile` after editing it. – Andre Ravazzi Jun 18 '20 at 15:23

score 48 · Answer 5 · edited Jun 25 '16 at 18:38

48

If you don't want that every time you open a terminal, do the suggestion above again, just add

source ~/.rvm/scripts/rvm

at the end of ~/.bashrc

edited Jun 25 '16 at 18:38

René Vogt

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answered Jun 25 '16 at 18:16

hhzhu

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This one helped. – Arup Rakshit Apr 04 '19 at 13:19
.. and needs a restart ? – gordie Feb 27 '20 at 23:04
@gordie Nope, simply execute `source ~/.bashrc` – Patricio Sard Sep 05 '20 at 22:50

score 27 · Answer 6 · edited Jun 12 '21 at 12:07

27

The error is due to rvm is not running as in login shell. Hence try the below command:

/bin/bash --login

You will able run rvm commands instantly as login shell in terminal.

edited Jun 12 '21 at 12:07

halfer

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answered May 05 '15 at 01:37

Sumit Munot

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score 16 · Answer 7 · answered Jun 09 '15 at 18:21

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Same principle as other answers, just thought it was quicker than re-opening terminals :)

bash -l -c "rvm use 2.0.0"

answered Jun 09 '15 at 18:21

Vigintas Labakojis

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Someone should come up with a better answer than all of these. This is the only item in all the answers to this question that works for me but this is not something I want to do all the time. Im on Mac OSX Sierra – djangofan Jun 22 '17 at 01:06

score 12 · Answer 8 · answered Dec 12 '17 at 14:06

You need to add source ~/.rvm/scripts/rvm to ~/.your_shellrc file. From now when you load a shell, rvm will be loaded.

For example:

if you are using zsh shell, need to add in ~/.zshrc file

if you are using bash shell, need to add in ~/.bashrc file

And then open a new tab to see the effect.

score 12 · Answer 9 · answered Mar 18 '21 at 13:40

12

I think this more generic solution

echo 'source "$HOME/.rvm/scripts/rvm"' >> ~/.bashrc

answered Mar 18 '21 at 13:40

Kapil Bhosale

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This should really be the answer. – volvox Mar 13 '23 at 14:24

score 9 · Answer 10 · answered Jul 12 '18 at 12:11

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For me in Ubuntu(18.08), I have added below line in .bashrc and it works.

 source /home/username/.rvm/scripts/rvm

Please add this line.

answered Jul 12 '18 at 12:11

Arjun

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Thanks! This worked for me on MacOS! As a suggestion, I think it's better to use `~` to refer to user's home path: `source ~/.rvm/scripts/rvm` :-) – Giovanni Benussi Nov 29 '18 at 14:09
Thanks for posting this answer. Worked for me on Ubuntu 20.04. – John Cowan Dec 06 '20 at 17:40

score 9 · Answer 11 · answered Dec 17 '20 at 12:34

9

Following work for me in ubuntu 19.1

source ~/.rvm/scripts/rvm

answered Dec 17 '20 at 12:34

Sagar Jethi

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This worked for me using WSL2 Ubuntu. Thanks – nicholas moignard May 05 '21 at 05:13
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@Sagar Jethi, you made my day. – Adnan Jun 13 '22 at 14:28

score 3 · Answer 12 · answered Aug 02 '16 at 00:33

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From a new Ubuntu 16.04 Installation

1) Terminal => Edit => Profile Preferences

2) Command Tab => Check Run command as a login shell

3) Close, and reopen terminal

rvm --default use 2.2.4

answered Aug 02 '16 at 00:33

WiredIn

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Mike Milkman · Answer 13 · 2021-02-23T22:02:45.013

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If RVM was installed with dedicated ubuntu RVM installer https://github.com/rvm/ubuntu_rvm the path to RVM scripts will be different /usr/share/rvm/scripts/rvm. So to add it to your .bashrc run the following command:

echo 'source "/usr/share/rvm/scripts/rvm"' >> ~/.bashrc

edited Feb 23 '21 at 22:02

answered Feb 23 '21 at 16:30

Mike Milkman

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score 0 · Answer 14 · answered Jun 01 '17 at 16:57

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FWIW- I just ran across this as well, it was in the context of a cancelled selenium run. Perhaps there was a sub-shell being instantiated and left in place. Closing that terminal window and opening a new one was all I needed to do. (macOS Sierra)

answered Jun 01 '17 at 16:57

user8099101

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score 0 · Answer 15 · answered Jan 21 '21 at 11:13

     Usually this is caused by shell initialization files. Search for PATH=... entries.
     You can also re-add RVM to your profile by running: rvm get stable --auto-dotfiles
     To fix it temporarily in this shell session run: rvm use ruby-2.6.5
     To ignore this error add "rvm_silence_path_mismatch_check_flag=1" to your "~/.rvmrc" file.

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

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