# "gem list" and "sudo gem list" yield different results

**URL:** <https://www.ruby-forum.com/t/gem-list-and-sudo-gem-list-yield-different-results/133171>\
**Category:** Ruby\
**Created:** [March 28, 2008, 3:09pm UTC](https://www.ruby-forum.com/t/gem-list-and-sudo-gem-list-yield-different-results/133171 "2008-03-28T15:09:48Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![miken700](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/85e7bf/32.png) [@miken700](https://www.ruby-forum.com/u/miken700)\
**Post date:** [March 28, 2008, 3:09pm UTC](https://www.ruby-forum.com/t/gem-list-and-sudo-gem-list-yield-different-results/133171/1 "2008-03-28T15:09:48Z")

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Hey there,

“sudo gem list” shows all my gems, while  
“gem list” shows no gems.

As a result, I have to start mongrel with “sudo script/server”, because  
without sudo, it can’t find my gems.

Any clues? Is this a permissions thing?

I’m doing this on a centos server.

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**Author:** ![miken700](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/85e7bf/32.png) [@miken700](https://www.ruby-forum.com/u/miken700)\
**Post date:** [March 28, 2008, 3:16pm UTC](https://www.ruby-forum.com/t/gem-list-and-sudo-gem-list-yield-different-results/133171/2 "2008-03-28T15:16:53Z")

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On Fri, Mar 28, 2008 at 9:09 AM, Mike Nicholaides  
[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> “sudo gem list” shows all my gems, while  
> “gem list” shows no gems.

Sounds to me that you have more than one Ruby/RubyGems installation.  
You might want to compare the results of typing:

```
gem environment

```

with the results of typing:

```
sudo gem environment

```

Hope this helps,

Lyle

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**Author:** ![miken700](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/85e7bf/32.png) [@miken700](https://www.ruby-forum.com/u/miken700)\
**Post date:** [March 28, 2008, 3:27pm UTC](https://www.ruby-forum.com/t/gem-list-and-sudo-gem-list-yield-different-results/133171/3 "2008-03-28T15:27:33Z")

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On Mar 28, 2008, at 9:09 AM, Mike Nicholaides wrote:

> “sudo gem list” shows all my gems, while  
> “gem list” shows no gems.

do “which gem”  
and “sudo which gem”

I’m guessing they’re different

Dave

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**Author:** ![miken700](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/85e7bf/32.png) [@miken700](https://www.ruby-forum.com/u/miken700)\
**Post date:** [March 28, 2008, 3:29pm UTC](https://www.ruby-forum.com/t/gem-list-and-sudo-gem-list-yield-different-results/133171/4 "2008-03-28T15:29:12Z")

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Wow!, you were absolutely right!

Thanks a lot!