To find and download HEASARC data in the cloud, you can use astroquery.heasarc or download our new tool, hark.
The HEASARC and NuSTAR teams are greatly saddened by the sudden passing of Katja Pottschmidt. Most recently Katja was the lead scientist for the NuSTAR Guest Observer Facility (GOF), a role she had supported for many years. During her science career she worked on many other high energy astrophysics missions and played an integral role in advancing our knowledge of the universe. She was a wonderful colleague and friend and will be keenly missed by all who knew her.
log
This command opens or closes a log file.
xsel > log <log file>
where 
log file
is the name of the file to be opened (default extension is .log). If no arguments are on the line, then the default file name is xselect.log. If log file matches the string “none” then the current log file is closed. The log contains a complete dump of the session – to just get the commands (for a macro, for example) use the scripts command.
Examples:
xsel > log andy
will start logging commands in andy.log
Example 2:
xsel > log none
will turn off the logging.
Xselect will log all the output it generates, as well as the output that is generated by the spawned Ftools. This feature is not yet available on the VMS version.