# Retrieã„’e data from bash shell?

**URL:** <https://www.ruby-forum.com/t/retriea-e-data-from-bash-shell/131946>\
**Category:** Ruby\
**Created:** [March 14, 2008, 5:07pm UTC](https://www.ruby-forum.com/t/retriea-e-data-from-bash-shell/131946 "2008-03-14T17:07:05Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ikuta](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/c57346/32.png) [@ikuta](https://www.ruby-forum.com/u/ikuta)\
**Post date:** [March 14, 2008, 5:07pm UTC](https://www.ruby-forum.com/t/retriea-e-data-from-bash-shell/131946/1 "2008-03-14T17:07:05Z")

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Hi

I have a question here.  
If I want retrive

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**Author:** ![ikuta](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/c57346/32.png) [@ikuta](https://www.ruby-forum.com/u/ikuta)\
**Post date:** [March 14, 2008, 5:11pm UTC](https://www.ruby-forum.com/t/retriea-e-data-from-bash-shell/131946/2 "2008-03-14T17:11:40Z")

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Ikuta L. wrote:

> Hi
> 
> I have a question here.  
> sorry about that… btw how I delete my post…  
> If I want retrieve data from bash shell like as below  
> name=`$USER`

what can I do?

Thanks a lot!

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<div class="post-metadata">

**Author:** ![ikuta](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/c57346/32.png) [@ikuta](https://www.ruby-forum.com/u/ikuta)\
**Post date:** [March 14, 2008, 6:16pm UTC](https://www.ruby-forum.com/t/retriea-e-data-from-bash-shell/131946/3 "2008-03-14T18:16:34Z")

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That’s special variable called ENV that can be used like Hash. It have a  
lot  
of information like USERNAME, PROCESSOR\_ARCHITETURE and many more.  
To print username use:  
puts ENV[“USERNAME”]

2008/3/14, Ikuta L. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):