The HEASARC welcomes your participation in a brief survey to capture how users access and utilize HEASARC data, software, and services. The outcome(s) of this survey will be used to guide, prioritize, and plan our activities and development in the coming years. It contains 20 questions, generally takes just a few minutes to complete, and your answers will remain totally anonymous. The survey is open until Dec 18, 2023. We thank you in advance for your valuable feedback.

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help

Get help on Xselect commands


Obtain help on the XSELECT commands, their syntax, and examples. Help uses the IHF interactive help facility. The optional topic list can be used to go directly to a particular topic and sub-topic. Once in help, typing ?? will summarise extra features and special characters that can be used within the IHF system.

To exit back to XSELECT, use an EOF, a /*, or type $<$CR$>$ until you leave the help facility.

Syntax: 

xsel >  help <topic list>

Examples: 

xsel >  help help

gives the text you are reading. 

xsel >  help "commands extract"

gives the text for the extract command.


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Last modified: Tuesday, 10-Jan-2023 11:03:01 EST

The HEASARC welcomes your participation in a brief survey to capture how users access and utilize HEASARC data, software, and services. The outcome(s) of this survey will be used to guide, prioritize, and plan our activities and development in the coming years. It contains 20 questions, generally takes just a few minutes to complete, and your answers will remain totally anonymous. The survey is open until Dec 18, 2023. We thank you in advance for your valuable feedback.