hostname - phpMan

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21.5 'hostname': Print or set system name

With no arguments, 'hostname' prints the name of the current host
system.  With one argument, it sets the current host name to the
specified string.  You must have appropriate privileges to set the host
name.  Synopsis:

     hostname [NAME]

   The only options are '--help' and '--version'.  *Note Common

   'hostname' is not installed by default, and other packages also
supply a 'hostname' command, so portable scripts should not rely on its
existence or on the exact behavior documented above.

   An exit status of zero indicates success, and a nonzero value
indicates failure.

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