09-21-2010
Help with filtering trace file through grep
Hi,
I am using NS2 and i need to filter a trace file (part of which is shown below):
- 33.91576 2 3 tcp 1040 ------- 1 0.0 4.0 1115 2258
r 33.918907 4 3 ack 40 ------- 1 4.0 0.0 1107 2272
+ 33.918907 3 2 ack 40 ------- 1 4.0 0.0 1107 2272
- 33.918907 3 2 ack 40 ------- 1 4.0 0.0 1107 2272
r 33.9192 2 0 ack 40 ------- 1 4.0 0.0 1103 2264
+ 33.9192 0 2 tcp 1040 ------- 1 0.0 4.0 1123 2275
- 33.9192 0 2 tcp 1040 ------- 1 0.0 4.0 1123 2275
r 33.93256 2 3 tcp 1040 ------- 1 0.0 4.0 1111 2250
+ 33.93256 3 4 tcp 1040 ------- 1 0.0 4.0 1111 2250
- 33.93256 3 4 tcp 1040 ------- 1 0.0 4.0 1111 225
........................
The file needs to be filtered such that column number 3 should only contain "3" and column number 1 should only contain "r" using GREP (or awk).
Any help is greatly appreciated!
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tcp.h(3HEAD) Headers tcp.h(3HEAD)
NAME
tcp.h, tcp - definitions for the Internet Transmission Control Protocol (TCP)
SYNOPSIS
#include <netinet/tcp.h>
DESCRIPTION
The <netinet/tcp.h> header defines the following macro for use as a socket option at the IPPROTO_TCP level:
TCP_NODELAY Avoid coalescing of small segments.
The macro is defined in the header. The implementation need not allow the value of the option to be set with setsockopt() or retrieved with
getsockopt().
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO
getsockopt(3XNET), socket.h(3HEAD), attributes(5), standards(5)
SunOS 5.10 10 Sep 2004 tcp.h(3HEAD)