02-22-2005
vgersh99,
it still doesn't work
CT
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
All
Iam using Korne shell in AIX OS. Can u give me the syntax to send a mail.
Thanx in advance
Regards
Deepak (5 Replies)
Discussion started by: DeepakXavier
5 Replies
2. Shell Programming and Scripting
All
Please help to provide "goto" functionality in KORN shell script.
ex:
1: Command
Process some command
if check some variable
true
goto 1
else
process some other
Please help to implement this example in korne... (1 Reply)
Discussion started by: DeepakXavier
1 Replies
3. Shell Programming and Scripting
is there any way to format a file by just removing first line and last line from the file.
my file is like
test.txt
12may2004,20may2004,A
123,SCOTT,TIGER,,,,12,12-MAY-2006
124,TIGER,SCOTT,,,,,,,
....
...
163,cscssaa,abc,,,,12,12-MAY-2006
END
my requirement is to produce the same file... (1 Reply)
Discussion started by: u263066
1 Replies
4. Shell Programming and Scripting
Hi Everyone,
I have tried with the following Code for each of the following, but that does not seem to serve the purpose. Can someone give some pointers please.
1) A Korne Shell which asks the user to enter the name of a file when searching it
recursively (using the find command) in the... (3 Replies)
Discussion started by: marconi
3 Replies
5. Shell Programming and Scripting
I am new to Korne Shell Scripting. Can someone help me with a Korne Shell which asks the user :-
1) to enter the name of a file when searching it recursively (using the find
command) in the home directory of this user.
2) for a date (format AAMMJJ) and a directory and then searches ... (4 Replies)
Discussion started by: marconi
4 Replies
6. Shell Programming and Scripting
In Korne Shell Scripting, how to search recursively in a directory, the list of files modified after a given date ..
Thanks in advance.. (1 Reply)
Discussion started by: marconi
1 Replies
7. Shell Programming and Scripting
I am trying to write a Korne Shell asking the user for a date and a directory and then search recursively in this directory the list of files modified after the date chosen. But I am not getting good results when I Test it...
#!/usr/bin/ksh
echo "Enter a date (YYYYMMDD) "
read date
touch -t... (2 Replies)
Discussion started by: marconi
2 Replies
8. Shell Programming and Scripting
Hi,
I am having couple of files which i used to copy from windows to Linux, so now in case of text files (CTRL^M) appears at end of line. I know i can convert this windows format file to unix format file by running dos2unix.
My requirement here is that i want to do it automatically using a... (5 Replies)
Discussion started by: sarbjit
5 Replies
9. Shell Programming and Scripting
Request if some one could provide me shell script that converts the below "input file" to "CSV format file" given
Name Domain Contact Phone Email Location
----------------------- ------------------------------------------------ ------- ----- ---------------------------------... (7 Replies)
Discussion started by: sreenath1037
7 Replies
10. Shell Programming and Scripting
Hi ,
i am generating some data by firing sql query with connecting to the database by my solaris box.
The below one should be the header line of my excel ,here its coming in separate row.
TO_CHAR(C. CURR_EMP_NO
---------- ---------------
LST_NM... (6 Replies)
Discussion started by: dani1234
6 Replies
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)