Check if a machine is online with better UI

• Check if a machine is online

  PING parameters c 1 limits to 1 pinging attempt q makes the command quiet (or silent mode) /dev/null 2>&1 is to remove the display && echo ONLINE is executed if previous command is successful (return value 0) || echo OFFLINE is executed otherwise (return value of 1 if unreachable or 2 if you're offline yourself). I personally use this command as an alias with a predefined machine name but there are at least 2 improvements that may be done. Asking for the machine name or IP Escaping the output so that it displays ONLINE in green and OFFLINE in red (for instance).

  This is sample output - yours may be different.

  
  

  9
  ping -c 1 -q MACHINE_IP_OR_NAME >/dev/null 2>&1 && echo ONLINE || echo OFFLINE
  UnixNeko · 2012-02-09 06:30:55 28
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  • Report as malicious
  • Report as a duplicate
• Check if a machine is online

  export THISOS="`uname -s`" if [ "$THISOS" = "SunOS" ] then export THISRELEASE="`uname -r`" ping1() { ping -s $1 56 1 | egrep "^64"; } elif [ "$THISOS" = "AIX" ] then export THISRELEASE="`uname -v`.`uname -r`" ping1() { ping -w ${2:-1} $1 56 1 | egrep "^64"; } elif [ "$THISOS" = "Linux" ] then export THISRELEASE="`uname -r`" ping1() { ping -c 1 -w ${2:-1} $1 | egrep "^64"; } fi

  This is sample output - yours may be different.

  
  

  0
  ping1 IPaddr_or_hostname
  waibati · 2012-02-09 17:26:32 4
  • Submit alternative
  • Report as malicious
  • Report as a duplicate

Very nice improvement of my formerly sent comment. Nice job. ;)

UnixNeko · 529 weeks and 3 days ago

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Perfecthomepugs · 102 weeks and 1 day ago

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pugpuppies95 · 64 weeks and 3 days ago

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pugpuppies95 · 64 weeks and 3 days ago

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yeneba6574 · 17 weeks and 5 days ago

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