I have a script that logs into a server and pings several other servers in order to verify IP path between servers.
The output can look like this, if good pings:
Response from 1.1.1.4;_id=0, vlan_prio=0): seq=0 time=91.547 ms.
Response from 1.1.1.4;_id=0, vlan_prio=0): seq=1 time=61.176 ms.
Response from 1.1.1.4;_id=0, vlan_prio=0): seq=2 time=60.904 ms.
I found a thread in this forum (now closed) that allowed for pattern matching on the "packet loss" and to print the previous line (so my log will show IP address as well as result, since this system doesn't include them on the same line.)
Code:
awk '/packet loss/{if (a && a !~ /packet loss/) print a; print} {a=$0}' log_ping.txt
(Thanks Marco!)
But I need an additional snippet in there somehow to EXCLUDE lines that show "0% packet loss"...i.e. only match on lines that show some kind of packet loss. Not 0% packet loss.
In a nutshell, I need to work out how to return the last matching pattern from an awk //,// search. I can bring back the first, but am unsure how to obtain the last, and a simple tail won't work as the match could be over multiple lines.
Secondly I would like some way of pattern matching, a... (10 Replies)
Dear Team,
How do we match two patterns on the same line using awk?Are there any logical operators which i could use in awk like awk '\gokul && chennai\' <filename>
Eg:
Input file:
gokul,10/11/1986,coimbatore.
gokul,10/11/1986,bangalore.
gokul,12/04/2008,chennai.... (2 Replies)
Hi,
How can I tell awk to print all lines/columns if column number 5 contains the word Monday?
I have tried
nawk -F, '$5==Monday' OFS=, myfile > outputfile
but that doesn't work (I am a newb!!)
Thanks, (7 Replies)
Find bumblebee and Megatron patterns (input2) in input1.
If it is + read input1 patterns from Left to Right
if it is - read input1 patterns from Right to Left
Y= any letter (A/B/C/D)
input1
c1 100 120 TF01_X1 + AABDDAAABDDBCADBDABC
c2 100 120 TF02_X2 - AABDDAAABDDBCBACDBBC... (2 Replies)
Dear Friends,
I have a flat file. To pick certain details we have written an awk where we are facing difficulty.
Sample of flat file.
line 1
line 2
line 3
line 4
line 5
line 6
line 7
line 8
line 9
line 10
line 11
line 12
line 13
line 14 (Matching pattern "Lkm_i-lnr:"can be... (4 Replies)
Hello all,
I am trying to sort thru a database and print all the customers whose first names are only four characters. I just want to pull the first name only from the database.
the database records appear like this in file:
Mike Harrington:(510) 548-1278:250:100:175; first is name Mike... (4 Replies)
Hi,
I am still a beginner on shell scripting so please bear with me.
What i am trying to do is filter my logfile based on some ID on field 24 which is defined in array. The filter result output will be moved to my log folder with the same name. The problem is when not using loop, this command... (2 Replies)
can somebody provide me with some ksh code that will return true if my the contents in my variable match anyone of these strings ORA|ERROR|SP2
variable="Error:ORA-01017: Invalid username/password; logon denied\nSP2-0640:Not connected"
I tried this and it does not seem to work for me
... (3 Replies)
Hi I am trying to find a pattern match with column one containing 3 numbers.
input file tmp.lst
abcd456|1|23123|123123|23423
kumadff|a|dadfadf|adfd|adfadfadf
xxxd999|d|adfdfs|adfadf|adfdasfadf
admin|a|dafdf|adfadfa|||
output file tmp4.lst
abcd456|1|23123|123123|23423... (3 Replies)
I have two files, want to compare file1 data with file2 second column and print line which are not matching. Need help in matching the pattern, file2 second column number can be leading 0 or 00 or 000.
Example:
file1
1
2
3
file2
a,0001
b,02
c,000
d,01
e,2
f,0005
Expected output:... (20 Replies)
Discussion started by: vegasluxor
20 Replies
LEARN ABOUT DEBIAN
bing
BING(8) UNIX System Manager's Manual BING(8)NAME
bing - compute point to point throughput using two sizes of ICMP ECHO_REQUEST packets to pairs of remote hosts.
SYNOPSIS
bing [dDnrRPvVwz] [-c count] [-e samples] [-f samplefile] [-i wait] [-p pattern] [-s small packetsize] [-S big packetsize] host1 host2
[...]
DESCRIPTION
Bing determines bandwidth on a point-to-point link by sending ICMP ECHO_REQUEST packets and measuring their roundtrip times for different
packet sizes on each end of the link.
host1 is supposed to be the nearest end of the link, while host2 is the other end.
The options are as follows:
-c count
Stop after count resets of the stats. Useful only in conjunction with the -e option. Defaults to 1.
-d Set the SO_DEBUG option on the socket being used.
-D Display the measured throughput at every received packet. By default, it is displayed only when the computed value changes, which
itself changes only when the minimum roundtrip time for one of the packet sizes changes.
-e samples
Reset stats after sending samples ECHO_REQUEST packets.
-f samplefile
Saves the bandwidth measurements to the file samplefile.
-i wait
Wait wait seconds for each ECHO_REPLY packet. The default is to wait for four seconds.
-n Numeric output only. No attempt will be made to lookup symbolic names for host addresses.
-P Be pedantic regarding round-trip times.
Normally, bing assumes that the roundtrip time for a small packet should always be smaller than the roundtrip time for a big packet to
the same host, that for a given size the roundtrip time for host1 should always be smaller than the roundtrip time for host2, and that
the increase in the roundtrip time between host1 and host2 should always be bigger for big packets than for small packets.
Bing takes advantage of this to better determine the minimum roundtrip times.
Option -P disables this behaviour, in the unlikely event it could be of any use someday. Even IP/X25 links are not weird enough to
require this, though.
-p pattern
You may specify up to 16 ``pad'' bytes to fill out the packet you send. This is useful for diagnosing data-dependent problems in a
network. For example, ``-p ff'' will cause the sent packet to be filled with all ones.
-R Record route. Includes the RECORD_ROUTE option in the ECHO_REQUEST packet and displays the route buffer on returned packets. Note that
the IP header is only large enough for nine such routes. Many hosts ignore or discard this option.
-r Bypass the normal routing tables and send directly to a host on an attached network. If the host is not on a directly-attached net-
work, an error is returned. This option can be used to ping a local host through an interface that has no route through it (e.g.,
after the interface was dropped by routed(8)).
-s small packetsize
Specifies the number of data bytes to be sent in the small packets. The default and minimum value is 44.
-S big packetsize
Specifies the number of data bytes to be sent in the big packets. The default is 108. The size should be chosen so that big packet
roundtrip times are long enough to be accurately measured (depending on clock resolution and number of hops).
-u size increment
Specifies that bing should start sending packets of the size of small packetsize and then increase the size by size increment until it
reaches big packetsize.
-v Verbose output. ICMP packets other than ECHO_RESPONSE that are received are listed.
-V Very verbose output. The roundtrip time of each received echo is displayed.
-w Display possible warnings about roundtrip times all the time. By default, warnings are printed only at the end.
-z Fill packets with uncompressible (pseudo-random) data.
Round-trip times and packet loss statistics are computed. If duplicate packets are received, they are not included in the packet loss cal-
culation, although the round trip time of these packets is used in calculating the minimum/average/maximum round-trip time numbers. When
the specified number of loops have been made or if the program is terminated with a SIGINT, a brief summary is displayed.
This program is intended for use in network testing, measurement and management. Because of the load it can impose on the network, it is
unwise to use bing during normal operations or from automated scripts.
BUGS
Many Hosts and Gateways ignore the RECORD_ROUTE option.
The maximum IP header length is too small for options like RECORD_ROUTE to be completely useful. There's not much that that can be done
about this, however.
Some of the final stats (average throughputs) almost never give a even marginally correct result.
SEE ALSO netstat(1), ifconfig(8), ping(8), routed(8), traceroute(8)AUTHOR
Pierre Beyssac <pb@fasterix.freenix.fr>
Port to Windows: Francois Gouget <fgouget@mygale.org>
April 3, 1995 BING(8)
03-02-2018
