i am trying to analyze a text file using awk and am not able to solve this issue.
This is the piece of code that I have written
Code:
BEGIN {
## Time to count MACs -> 5 seconds.
TIME_LIMIT = 5;
k = 50000;
}
## For every line.
{
time_in_seconds = $1
mac = $2;
if ( mac_pair[mac] ) {
diff = time_in_seconds - mac_pair[mac];
##print diff
if ( diff > TIME_LIMIT ) {
++counter;
printf "%s\n", "Incrementing counter: " $0;
}
} else {
## Increment counter for first time of this MACs.
++counter;
printf "%s\n", "Incrementing counter: " $0;
}
mac_pair[mac] = time_in_seconds;
## NEW ROUTINE
if ( NR = k){
remove_time = time_in_seconds-5;
##print remove_time
for (x in mac_pair)
{ if (mac_pair[x] < remove_time )
{ delete mac_pair[x]
print x}
}
k = k + 50000;
}
}
END {
printf "%s = %d\n", "Counter is:", counter;
}
The code goes through lines, matches and increments a counter if there is no match for the previous 5 seconds. The issue I m facing is i have to run this over huge files and my ram gets exhausted. That is why I have included a new routine which will discard packets after a set number of lines have been processed.
If i try to print NR before and after it runs this routine, i see it gets altered. Also the routine within if ( NR = k) runs for every line. I am not sure why.
Hi,
# grep "^Listen" httpd.conf | awk '{print $2}'
FrontEnd_1_IP:8081
FrontEnd_2_IP:8081
8081
8082
8083
#
I need to get the values one at a time but I just can't manage to do that.
Thanks,
Bianca (20 Replies)
In the following code, Im trying to imbed many statements in a single awk statement. But it gives an error on that,
for i in `less usage_types_dwh.txt`
do
cd /u01/app/evident/analysis_lab/usg_type
grep $i svc_type.txt | head -1 | awk 'BEGIN {FS=","} {print $1 "==" $2 ":" $3 ":" $4;... (2 Replies)
I have this input file
0FB7,1083,Synchronized,FriNov121655,2816_7RAID5,05F:1_10F:1,10000000NoneNone,DC_db00p01
0FB7,1150,Split,MonApr180658,2816_7R5GC,N/A,N/A,N/A
06C4,0710,Synchronized,WedMar91105,2816_7RAID5,04E:1_11E:1,10000000NoneNone,DL_nb00p25... (1 Reply)
Hi Gurus,
I am facing a similar issue usiung an awk command. Below is my requirement:
---DATA---
A;F;G
A;D;E
A;D;E
B;Z;P
C;Z;Q
Expected:
A
F<TAB>G
D<TAB>E
D<TAB>E
B
D<TAB>E (1 Reply)
Hi all,
i am trying to use below command to see the output of hardware inventory, but i only see 2 first line no output of the command.
awk '/Hardware/ {print $0}' XXX_result.txt
Hardware inventory:
Hardware inventory:
any idea how to see whatever is under hardware inventory.
i... (11 Replies)
Hi All,
I am using the below script which has awk command, but it is not returing the expected result. can some pls help me to correct the command.
The below script sample.ksh should give the result if the value of last 4 digits in the variable NM matches with the variable value DAT. The... (7 Replies)
On AIX 5.3 and AIX 6.1, I have this script for checking printers being pingable or not.
for i in `lsallq`
do
echo "Queue Name: " $i
echo "----------------------------------------"
for j in `lsallqdev -q $i`
do
echo " Device Name:" $j
hname=`echo... (3 Replies)
OK, so I am trying to use awk as a method of accessing a table stored in a file to then provide the capability of a look up table.
The table is stored in a file named "/Users/jhaney/Desktop/assetTypeMapping.tsv" and looks like this:
aCategory aLetter aNumber
AssetCat1 A 123 ... (10 Replies)
Discussion started by: jhaneyzz
10 Replies
LEARN ABOUT PLAN9
netmasks
netmasks(4) File Formats netmasks(4)NAME
netmasks - network mask database
SYNOPSIS
/etc/inet/netmasks
/etc/netmasks
DESCRIPTION
The netmasks file contains network masks used to implement IP subnetting. It supports both standard subnetting as specified in RFC-950 and
variable length subnetting as specified in RFC-1519. When using standard subnetting there should be a single line for each network that is
subnetted in this file with the network number, any number of SPACE or TAB characters, and the network mask to use on that network. Network
numbers and masks may be specified in the conventional IP `.' (dot) notation (like IP host addresses, but with zeroes for the host part).
For example,
128.32.0.0 255.255.255.0
can be used to specify that the Class B network 128.32.0.0 should have eight bits of subnet field and eight bits of host field, in addition
to the standard sixteen bits in the network field.
When using variable length subnetting, the format is identical. However, there should be a line for each subnet with the first field being
the subnet and the second field being the netmask that applies to that subnet. The users of the database, such as ifconfig(1M), perform a
lookup to find the longest possible matching mask. It is possible to combine the RFC-950 and RFC-1519 form of subnet masks in the net-
masks file. For example,
128.32.0.0 255.255.255.0
128.32.27.0 255.255.255.240
128.32.27.16 255.255.255.240
128.32.27.32 255.255.255.240
128.32.27.48 255.255.255.240
128.32.27.64 255.255.255.240
128.32.27.80 255.255.255.240
128.32.27.96 255.255.255.240
128.32.27.112 255.255.255.240
128.32.27.128 255.255.255.240
128.32.27.144 255.255.255.240
128.32.27.160 255.255.255.240
128.32.27.176 255.255.255.240
128.32.27.192 255.255.255.240
128.32.27.208 255.255.255.240
128.32.27.224 255.255.255.240
128.32.27.240 255.255.255.240
128.32.64.0 255.255.255.192
can be used to specify different netmasks in different parts of the 128.32.0.0 Class B network number. Addresses 128.32.27.0 through
128.32.27.255 have a subnet mask with 28 bits in the combined network and subnet fields (often referred to as the subnet field) and 4 bits
in the host field. Furthermore, addresses 128.32.64.0 through 128.32.64.63 have a 26 bits in the subnet field. Finally, all other
addresses in the range 128.32.0.0 through 128.32.255.255 have a 24 bit subnet field.
Invalid entries are ignored.
SEE ALSO ifconfig(1M), inet(7P)
Postel, Jon, and Mogul, Jeff, Internet Standard Subnetting Procedure, RFC 950, Network Information Center, SRI International, Menlo Park,
Calif., August 1985.
V. Fuller, T. Li, J. Yu, K. Varadhan, Classless Inter-Domain Routing (CIDR): an Address Assignment and Aggregation Strategy, RFC 1519,
Network Information Center, SRI International, Menlo Park, Calif., September 1993.
T. Pummill, B. Manning, Variable Length Subnet Table For IPv4, RFC 1878, Network Information Center, SRI International, Menlo Park, Calif.,
December 1995.
NOTES
/etc/inet/netmasks is the official SVr4 name of the netmasks file. The symbolic link /etc/netmasks exists for BSD compatibility.
SunOS 5.10 7 Jan 1997 netmasks(4)
11-03-2011
