12-11-2013
unfortunately "tr" does not work on my OS!
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1. Shell Programming and Scripting
Hi All,
I have two comma separated value(CSV) files, say FileA and FileB.
The contents looks like that shown below.
FileA
EmpNo,Name,Age,Sex,
1000,ABC,23,M,
1001,DES,24,F, ... (2 Replies)
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2. Shell Programming and Scripting
Hi,
Does anyone know if its possible to add something like an end of line like c or java in unix?
dirs=/home/nosnam
var=''
for dir in $dirs
do
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for eachList in $listDirs
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3. UNIX for Advanced & Expert Users
Hi i would like to add line numbers to end of each line in a file.
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4. Shell Programming and Scripting
Hi Folks,
Using the Vi, how can I add a numbers at the end of the line.
For eg: I have the numbers in the file as:
58.125.33
22.58.68
25.144.225
114.25.38
I need to add .0/8 at the end of all the line. So, it should be like
58.125.33.0/8
22.58.68.0/8
25.144.225.0/8
114.25.38.0/8 (6 Replies)
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5. Shell Programming and Scripting
hi,
i have file which is having large sql query
eg :
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i.e. i should look like
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6. Shell Programming and Scripting
I have a file with varying record length in it. I need to reformat this file so that each line will have a length of 100 characters (99 characters + the line feed).
AU * A01 EXPENSE 6990370000 CWF SUBC TRAVEL & MISC
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7. Shell Programming and Scripting
Example data
Gi1/10
Gi1/12 xl32lytscb07
3/11 to nyc
3/12 41764 ecomm
3/13 hxcsxsa 2/1
3/14 ziim570-rsvd
3/15 xl3NDSADM
Po1 VPC trunk to xl3-i
Po2 ***DO NOT ENABLE**
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Po101
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8. Shell Programming and Scripting
How to add a comma at the end of each line in this file?30 1412
30 3352
30 5254
30 5543
30 7478
3 28
3 30
3 39
3 54
3 108
3 152
3 178
3 182
3 214
3 271
3 286
3 300
3 348
3 349
3 371 (3 Replies)
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9. Shell Programming and Scripting
Hai,
I have got a small requirement in my script. and i am using bash shell. I need to add a dot (.) for some particular line in a file. Say for example,
$Cat rmfile
1 This is line1
2 This is line2
3 This is line3
O/p should be :
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10. Shell Programming and Scripting
My file (the output of an experiment) starts off looking like this,
_____________________________________________________________
Subjects incorporated to date: 001
Data file started on machine PKSHS260-05CP
**********************************************************************
Subject 1,... (9 Replies)
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LEARN ABOUT SUSE
pcap_get_selectable_fd
PCAP_GET_SELECTABLE_FD(3PCAP) PCAP_GET_SELECTABLE_FD(3PCAP)
NAME
pcap_get_selectable_fd - get a file descriptor on which a select() can be done for a live capture
SYNOPSIS
#include <pcap/pcap.h>
int pcap_get_selectable_fd(pcap_t *p);
DESCRIPTION
pcap_get_selectable_fd() returns, on UNIX, a file descriptor number for a file descriptor on which one can do a select() or poll() to wait
for it to be possible to read packets without blocking, if such a descriptor exists, or -1, if no such descriptor exists. Some network
devices opened with pcap_create() and pcap_activate(), or with pcap_open_live(), do not support select() or poll() (for example, regular
network devices on FreeBSD 4.3 and 4.4, and Endace DAG devices), so -1 is returned for those devices.
Note that in:
FreeBSD prior to FreeBSD 4.6;
NetBSD prior to NetBSD 3.0;
OpenBSD prior to OpenBSD 2.4;
Mac OS X prior to Mac OS X 10.7;
select() and poll() do not work correctly on BPF devices; pcap_get_selectable_fd() will return a file descriptor on most of those versions
(the exceptions being FreeBSD 4.3 and 4.4), but a simple select() or poll() will not indicate that the descriptor is readable until a full
buffer's worth of packets is received, even if the read timeout expires before then. To work around this, an application that uses
select() or poll() to wait for packets to arrive must put the pcap_t in non-blocking mode, and must arrange that the select() or poll()
have a timeout less than or equal to the read timeout, and must try to read packets after that timeout expires, regardless of whether
select() or poll() indicated that the file descriptor for the pcap_t is ready to be read or not. (That workaround will not work in FreeBSD
4.3 and later; however, in FreeBSD 4.6 and later, select() and poll() work correctly on BPF devices, so the workaround isn't necessary,
although it does no harm.)
Note also that poll() doesn't work on character special files, including BPF devices, in Mac OS X 10.4 and 10.5, so, while select() can be
used on the descriptor returned by pcap_get_selectable_fd(), poll() cannot be used on it those versions of Mac OS X. Kqueues also don't
work on that descriptor. poll(), but not kqueues, work on that descriptor in Mac OS X releases prior to 10.4; poll() and kqueues work on
that descriptor in Mac OS X 10.6 and later.
pcap_get_selectable_fd() is not available on Windows.
RETURN VALUE
A selectable file descriptor is returned if one exists; otherwise, -1 is returned.
SEE ALSO
pcap(3PCAP), select(2), poll(2)
5 April 2008 PCAP_GET_SELECTABLE_FD(3PCAP)