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hostname -

    
    BusyBox v1.29.3 (2018-11-02 15:37:50 PDT) multi-call binary.
    Usage: hostname [OPTIONS] [HOSTNAME | -F FILE]
    Get or set hostname or DNS domain name
    	-s	Short
    	-i	Addresses for the hostname
    	-d	DNS domain name
    	-f	Fully qualified domain name
    	-F FILE	Use FILE's content as hostname