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thk thk Σαβ. 14 Ιούν. 2008 15:44 tags λίνουξ 1 views
To ping a whole subnet , only one time ,  discover alive hosts and print only those  ,
give:

fping -r 0 -q -a -g 192.168.1.0/24 2>/dev/null

2>/dev/null redirects standard error to /dev/null