# EC2 Command Line Tool Setup

**URL:** <https://community.wowza.com/t/ec2-command-line-tool-setup/58>\
**Category:** Wowza Streaming Engine\
**Created:** [June 29, 2009, 6:44am UTC](https://community.wowza.com/t/ec2-command-line-tool-setup/58 "2009-06-29T06:44:35Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![system](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/system/32/447_2.png) [@system](https://community.wowza.com/u/system)\
**Post date:** [June 29, 2009, 6:44am UTC](https://community.wowza.com/t/ec2-command-line-tool-setup/58/1 "2009-06-29T06:44:35Z")

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[https://www.wowza.com/docs/how-to-set-up-amazon-ec2-command-line-tools](https://www.wowza.com/docs/how-to-set-up-amazon-ec2-command-line-tools)

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**Author:** ![HAROLD\_WILLIAMS](https://avatars.discourse-cdn.com/v4/letter/h/f6c823/32.png) [@HAROLD\_WILLIAMS](https://community.wowza.com/u/HAROLD_WILLIAMS)\
**Post date:** [February 12, 2010, 11:45pm UTC](https://community.wowza.com/t/ec2-command-line-tool-setup/58/2 "2010-02-12T23:45:44Z")

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Hello,

When I followed your command line setup I got an error. “The system can not find the path specified.” I loaded the path in my browser and it found it right away. I went back to the DOS prompt and added a dash in front of the command ec2-describe-images so that it looked like this (-ec2-describe-images). This caused the system to not only find the file but it gave a different error. "ec2-describe-images is not recognized as an internal or external command, operable program, or batch file.

The java -version command returned the proper response. This happens on WinXP and WinVista

videoeditor

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**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\
**Post date:** [February 13, 2010, 1:25pm UTC](https://community.wowza.com/t/ec2-command-line-tool-setup/58/3 "2010-02-13T13:25:07Z")

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You probably need to review step 1, 4 and 6. Adding a dash in front EC2 commmands is not going to help.

Have you tried ElasticFox:

[https://addons.mozilla.org/en-US/firefox/addon/11626](https://addons.mozilla.org/en-US/firefox/addon/11626)

Most people use ElasticFox or the AWS console to manage EC2 instances. Makes life easier.

EC2 tools is more useful for integration.

Richard

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**Author:** ![HAROLD\_WILLIAMS](https://avatars.discourse-cdn.com/v4/letter/h/f6c823/32.png) [@HAROLD\_WILLIAMS](https://community.wowza.com/u/HAROLD_WILLIAMS)\
**Post date:** [February 13, 2010, 8:12am UTC](https://community.wowza.com/t/ec2-command-line-tool-setup/58/4 "2010-02-13T08:12:53Z")

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Hello’

It’s me again. I managed to get this far so I decided to keep going.

Here is what my computers tell me.

C:\Users\videoeditor\>ec2-describe-images --region us-east-1 -x all

Exception in thread “main” java.lang.NoClassDefFoundError: org/apache/commons/cl

i/ParseException

Caused by: java.lang.ClassNotFoundException: org.apache.commons.cli.ParseExcepti

on

at java.net.URLClassLoader$1.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

Could not find the main class: com.amazon.aes.webservices.client.cmd.DescribeIma

ges. Program will exit.