Gem Command not found

Question

I have installed gem on Ubuntu 10.10 32 bit with

apt-get install gem -y

But when I try to run

gem install something.gem

I get the error of the command not being found.

bash: gem: command not found

I installed gem, is there any reason it is saying it can't find the command?

These files were install by gem package

http://pastie.org/3483416

It says /usr/local/rvm/gems/ruby-1.9.3-p125/bin:/usr/local/rvm/gems/ruby-1.9.3-p125@global/bin:/usr/local/rvm/rubies /ruby-1.9.3-p125/bin:/usr/local/rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/ga mes — awmusic12635, Feb 28 '12 at 16:56

score 142 · Answer 1 · edited Dec 15 '13 at 11:24

142

Try the following:

sudo apt-get install rubygems

edited Dec 15 '13 at 11:24

Rubens

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answered Dec 15 '13 at 11:06

Thomas

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Whats the difference between this and installing just `ruby`? – basickarl Feb 24 '16 at 16:10

01100110 · Accepted Answer · 2012-02-29T00:55:28.663

52

Are you wanting ruby gems? If so, you need to install libgemplugin-ruby and then the ruby 'gem' program will be in your path:

aptitude install libgemplugin-ruby

edited Feb 29 '12 at 00:55

answered Feb 29 '12 at 00:46

01100110

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wich mirror do you use to find this package? I cant find here with the default raspbian sources.list. – gog Dec 17 '14 at 12:17

score 23 · Answer 3 · edited Nov 18 '12 at 09:12

23

The following command installs ruby gem for ubuntu:

apt-get install libgemplugin-ruby

I did it after ruby was installed.

edited Nov 18 '12 at 09:12

akjoshi

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answered Nov 18 '12 at 08:55

Druvision

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Unable to locate package for Ubuntu 18 ! :( – Nirojan Selvanathan May 24 '19 at 07:44

jsnjack · Answer 4 · 2016-08-12T08:31:10.987

22

Installing this package allows you to use gem command on Debian 8:

apt-get install rubygems-integration

To install a gem package you might also need:

apt-get install ruby ruby-dev

edited Aug 12 '16 at 08:31

answered Oct 30 '15 at 09:00

jsnjack

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Although the code is appreciated, it should always have an accompanying explanation. This doesn't have to be long, but it is expected. – peterh Oct 30 '15 at 17:28

score 16 · Answer 5 · answered Dec 23 '17 at 12:46

16

On Debian, Ubuntu or Linux Mint:

$ sudo apt-get install rubygems ruby-dev

On CentOS, Fedora or RHEL:

$ sudo yum install rubygems ruby-devel

answered Dec 23 '17 at 12:46

Yash Vekaria

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Thanks mate! I wanted to install gem for centOS and this solution worked. – Pramod Itagi Oct 04 '21 at 12:14

score 10 · Answer 6 · answered Jun 26 '13 at 20:22

10

FWIW, the equivalent package for RHEL/Fedora/CentOS/etc and SuSE/OpenSuSE appears to be called 'rubygems'.

answered Jun 26 '13 at 20:22

David Arnold

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score 9 · Answer 7 · answered Sep 16 '15 at 07:40

9

The following command may help you

sudo apt-get install ruby

answered Sep 16 '15 at 07:40

Akash Jain

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score 7 · Answer 8 · answered Feb 27 '18 at 03:30

7

On Ubuntu 14.04,

apt-get install ruby ruby-dev

this will install gem for you.

answered Feb 27 '18 at 03:30

Yushan ZHANG

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score 6 · Answer 9 · edited Jul 25 '16 at 19:47

6

On CentOS 7 you can do:

yum -y install rubygems-devel

That worked for me.

edited Jul 25 '16 at 19:47

trincot

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answered Jul 25 '16 at 19:25

thedude

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score 6 · Answer 10 · answered Oct 16 '20 at 04:12

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I had the same problem. What I did was:

sudo apt-get update

And then reinstall ruby-full

sudo apt-get install ruby-full

answered Oct 16 '20 at 04:12

Andrés Felipe Mesa David.

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score 3 · Answer 11 · answered Nov 07 '13 at 14:26

3

check that rvm is a function type rvm | head -1

answered Nov 07 '13 at 14:26

Connor Leech

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Worked for me. I was getting error while the command output was: **rvm is /home/zesaver/.rvm/bin/rvm**. Then I added to my .bashrc: **[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session as a function** . And reopened my terminal. Now the answer was: **rvm is a shell function**. And gem command started to work. – zesaver Mar 02 '16 at 10:03

score 3 · Answer 12 · answered Jan 01 '14 at 18:29

3

I know this is kind of late for a response. But I did run into this error and I found a solution here: https://rvm.io/integration/gnome-terminal

You just have to enable 'Run command as login shell' under the terminal preferences.

answered Jan 01 '14 at 18:29

castrike

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score 1 · Answer 13 · answered Feb 28 '12 at 20:42

1

The following command will give you the list of files that the gem package installed:

dpkg -L gem

that should help you troubleshoot.

answered Feb 28 '12 at 20:42

martinhans

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Ok, I ran it and got a list of files – awmusic12635 Feb 28 '12 at 21:42

score 1 · Answer 14 · answered Feb 29 '12 at 00:49

1

try

$ /usr/bin/pd-gem

or

$ pd-gem

answered Feb 29 '12 at 00:49

perreal

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score 0 · Answer 15 · answered Nov 12 '21 at 11:15

On Centos 8:

eventually, download the file of the application:

wget https://rubygems.org/downloads/asciidoctor-2.0.16.gem

then execute:

yum install -y rubygems ruby-devel
gem install asciidoctor

More: I tried positively also in a container (using the appropriate RUN and COPY statements before the commands).

Gem Command not found

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