but instead of just snmpget why don't you do a ping with a timeout first so you don't have to wait forever for each ip address ... i've modified jim's code below using a 5 second timeout on ping and taking out the "Timeout:" error ...
Code:
#!/bin/ksh
# assuming snmpget returns non-zero when printer not running snmp
echo "These ip addresses are not running snmp on " `date` > nosnmp.log
while read ipaddr
do
ping $ipaddr 5 > /dev/null 2>&1
if [ $? -eq 0 ]
then
snmpget -v 1 -c public $ipaddr sysName.0 2> /dev/null
if [ $? -ne 0 ];
then
echo "$ipaddr" >> nosnmp.log
fi
else
echo "$ipaddr" >> nosnmp.log
fi
done < iplist.txt
or else you can simply do ... since an unpingable networked printer is technically off the network functionwise ... (assuming a 2 second ping timeout) ...
Code:
#! /bin/ksh
echo "These ip addresses are unpingable as of [ `date` ]\n" > noping.log
for ipaddr in `< iplist.txt`
do
ping $ipaddr 2 2> /dev/null
if [ $? -ne 0 ]
then
echo "$ipaddr" >> noping.log
fi
done
exit 0
All right. Heres the deal, I need to know everysingle command or funtion there is to create a new c file (file.c). Heres the catch: I cannot use text editors!!!:mad:
I heard of a "gcc" command is that any good?:confused:
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Alright, well I did some more research since I originally posted this thread, and as much as I'd like to delete it, I can't, so I'll just extend my initial question a little.
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Hi everyone,
I am completely new to this forum and I have some questions regarding a script I am writing. I would be happy if anyone could help me with the small and precise script which should include if, then, else, while until, case and select.
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Hi,
I have created customized scripts to start httpd and postgres (For CentOS 6) in /etc/init.d. However for it to work even after reboot, I have to put the script in /etc/rc.d/rc0.d, rc1.d, etc.
# ls -lrt
total 60
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Discussion started by: anaigini45
6 Replies
LEARN ABOUT PLAN9
arp
ARP(3) Library Functions Manual ARP(3)NAME
arp - Internet Address Resolution Protocol
SYNOPSIS
bind -a #a /net/arp
/net/arp/ctl
/net/arp/data
/net/arp/stats
DESCRIPTION
The arp device provides the means by which the kernel resolves IP addresses into Ethernet addresses. A cache is maintained by the arp
device to speed the process.
The ctl file controls the ARP cache maintained by the kernel. The flush control message invalidates all entries in the cache. The delete
ipaddr control message invalidates a single cache entry. All IP addresses passed to the system are in the canonical textual form described
in ip(2). The perm ipaddr control message makes an existing cache entry permanent.
When the kernel boots, ipconfig sets up the IP stream and arpd opens #a/arp/data (see ipconfig(8)). This establishes the ARP cache and
enables arpd to receive all ARP packets from the network, which it uses to maintain the cache by writing the results of address resolution
requests back into the cache. The IP stream module uses the cache to translate IP addresses.
Subsequent opens of the data file allow the contents of the cache to be examined. Each cache entry consists of an IP address, an Ethernet
address, and the status of the entry. Entries may be invalid, permanent, or temporary. Permanent entries will never be aged from the
cache. Temporary entries may be replaced by new addresses entered by the ARP server.
The file stats reports the cache performance.
SEE ALSO ip(3), ipconfig(8)SOURCE
/sys/src/9/port/devarp.c
ARP(3)