Tcl delivers the name of the host a script is running on through the [info hostname] command.
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The [TclX] package has a '''host_info''' command.
    :   '''host_info''' ''option host''
Returns the information specified by ''option'' about the given ''host''. The following options are supported for ''option'':
   '''addresses''':   Return the list of [IP] addresses for ''host''.
   '''official_name''':   Returnt he official name of ''host''.
   '''aliases''':   Return the list of aliases for ''host''. (Note that these are [IP] number aliases, not [DNS] CNAME aliases.)




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