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Full Discussion: Help With Ping Script
Top Forums Shell Programming and Scripting Help With Ping Script Post 302477383 by spmitchell on Saturday 4th of December 2010 07:15:01 PM
Old 12-04-2010
Help With Ping Script
Hello all...I'm new to Unix and learning. What I'm trying to create is a script that will ping a known range of IP addresses, say 192.168.1.1 to 192.168.1.254. For each address that no reply is received, that address will be written to a log file that will be emailed to an administrator. My wife (who started out as a programmer) hasn't been able to help because she hasn't done anything with Unix since 2000. Any help would be greatly appreciated. Here's a script that I think comes close but it isn't quite there and I'm not sure how to modify it.
Code:
HOSTS="Hostname Here"

# no ping request
COUNT=1

# email report when
SUBJECT="Ping failed"
EMAILID="me@mydomain.com"
for myHost in $HOSTS
do
count=$(ping -c $COUNT $myHost | grep 'received' | awk -F',' '{ print $2 }' | awk '{ print $1 }')
if [ $count -eq 0 ]; then
# 100% failed
  
fi
done
echo "Host : $myHost is down (ping failed) at $(date)" | mail -s "$SUBJECT" $EMAILID

Last edited by Scott; 12-04-2010 at 08:20 PM.. Reason: Please use code tags
 

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LEARN ABOUT PHP

findsmb

FINDSMB(1)							   User Commands							FINDSMB(1)

NAME

       findsmb - list info about machines that respond to SMB name queries on a subnet

SYNOPSIS

       findsmb [subnet broadcast address]

DESCRIPTION

       This perl script is part of the samba(7) suite.

       findsmb is a perl script that prints out several pieces of information about machines on a subnet that respond to SMB name query requests.
       It uses nmblookup(1) and smbclient(1) to obtain this information.

OPTIONS

       -r
	   Controls whether findsmb takes bugs in Windows95 into account when trying to find a Netbios name registered of the remote machine. This
	   option is disabled by default because it is specific to Windows 95 and Windows 95 machines only. If set, nmblookup(1) will be called
	   with -B option.

       subnet broadcast address
	   Without this option, findsmb will probe the subnet of the machine where findsmb(1) is run. This value is passed to nmblookup(1) as part
	   of the -B option.

EXAMPLES

       The output of findsmb lists the following information for all machines that respond to the initial nmblookup for any name: IP address,
       NetBIOS name, Workgroup name, operating system, and SMB server version.

       There will be a '+' in front of the workgroup name for machines that are local master browsers for that workgroup. There will be an '*' in
       front of the workgroup name for machines that are the domain master browser for that workgroup. Machines that are running Windows for
       Workgroups, Windows 95 or Windows 98 will not show any information about the operating system or server version.

       The command with -r option must be run on a system without nmbd(8) running. If nmbd is running on the system, you will only get the IP
       address and the DNS name of the machine. To get proper responses from Windows 95 and Windows 98 machines, the command must be run as root
       and with -r option on a machine without nmbd running.

       For example, running findsmb without -r option set would yield output similar to the following

	   IP ADDR	   NETBIOS NAME   WORKGROUP/OS/VERSION
	   ---------------------------------------------------------------------
	   192.168.35.10   MINESET-TEST1  [DMVENGR]
	   192.168.35.55   LINUXBOX	 *[MYGROUP] [Unix] [Samba 2.0.6]
	   192.168.35.56   HERBNT2	  [HERB-NT]
	   192.168.35.63   GANDALF	  [MVENGR] [Unix] [Samba 2.0.5a for IRIX]
	   192.168.35.65   SAUNA	  [WORKGROUP] [Unix] [Samba 1.9.18p10]
	   192.168.35.71   FROGSTAR	  [ENGR] [Unix] [Samba 2.0.0 for IRIX]
	   192.168.35.78   HERBDHCP1	 +[HERB]
	   192.168.35.88   SCNT2	 +[MVENGR] [Windows NT 4.0] [NT LAN Manager 4.0]
	   192.168.35.93   FROGSTAR-PC	  [MVENGR] [Windows 5.0] [Windows 2000 LAN Manager]
	   192.168.35.97   HERBNT1	 *[HERB-NT] [Windows NT 4.0] [NT LAN Manager 4.0]

VERSION

       This man page is correct for version 3 of the Samba suite.

SEE ALSO

       nmbd(8), smbclient(1), and nmblookup(1)

AUTHOR

       The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open
       Source project similar to the way the Linux kernel is developed.

       The original Samba man pages were written by Karl Auer. The man page sources were converted to YODL format (another excellent piece of Open
       Source software, available at ftp://ftp.icce.rug.nl/pub/unix/) and updated for the Samba 2.0 release by Jeremy Allison. The conversion to
       DocBook for Samba 2.2 was done by Gerald Carter. The conversion to DocBook XML 4.2 for Samba 3.0 was done by Alexander Bokovoy.

Samba 3.5							    06/18/2010								FINDSMB(1)
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