Say I have the word:
zinger
I want to change it to print
z
i
n
g
e
r
This is for a sorting algorithm that I am testing out. I will then use sort on the vertical and change it back to horizontal printing using tr. Once it is horizontal again, I can compare that sorted jumble... (6 Replies)
Hi
Need ur help for the below question.
I have two files File-1 & File-2.
File-1(This is a fixed file i.e. the content of this file is not going to change over a period of time)
------
a
b
c
d
e
File-2 (This is a file which changes daily but the record count remains the same)... (1 Reply)
Hi Every body,
I have file which has enttries, with each 5 entries as a set of entries, I would like to read the file (line by line) and print five entries of a set vertically, the next entry should come in the next line.
Example:
cat sample_file
I am a
Unix Adminsitrator
new to shell... (6 Replies)
I used the SQL query (taken from other threads here) to get the expected values to be written into a file.
myQuery=`sqlplus -s cr_appsrvr/appsrvr@qwi << EndofFile
set heading off;
set tab off;
set wrap off;
set pages 0;
set feedback off;
SELECT CLEARINGHOUSE_TRACE_NUM, INSURED_ID FROM... (4 Replies)
Hi Im' trying to output a list of files then make the list files as choices, need someone to give me hand.
so far here is what i got.. a bit messy
#!/bin/sh
menu_str=`ls -1 file*`
cnt=0
for i in $menu_str
do
menu_item=${i}
cnt=$(($cnt+1))
echo $cnt
echo ${menu_item
}
done
... (3 Replies)
I do have a big file in the following format
>A1
ATGCGG
>A2
TCATGC
>A3
-TGCTG
The number of characters will be same under each subheader and only possible characters are A,T,G,C and -
I want to count the number of A's, T's,G's, C's & -'s vertically for all the positions so that I... (5 Replies)
Hi ALL
I have this data
ail,UTT,id1_0,COMBO,21,24,21,19
al,UTHAST,id1_0,COMBO,342,390,361,361
dmo,UTST,id1_0,COMBO,21,15,22,23
vne,UAST,id1_0,COMBO,345,372,390,393
I wan the sum of column 5,6,7 & 8 both horizontal and vertical.
There is one more prob the column keeps on increasing... (9 Replies)
Hello All,
I am trying to take a colon-delimited line from a bunch of lines such as
apple:green:5cents:CA
apple:red:4cents:FL
orange:green:6cents:HI
...and display it vertically with label prefixes such as the following;
Fruit: apple
Color: green
Price: 5cents
Origin: CA
So... (3 Replies)
hi,
i need a help in the script , need to append a string at the end of each line of a files , and append the files into a single file vertically.
eg
file1 has the following columns
abc,def,aaa
aaa,aa,aaa
files 2 has the following rows and columns
abc,def,aaa
aaa,aa,aaa
i... (3 Replies)
Hello,
Please help create the following report.
I have a matrix
- S1 S2 S3 S4
M1 AA AA TT -
M2 AG AG AA GG
M3 GG TT - -
a first lookup table
M3 chr7 4.456
M1 chr7 28.9
M2 chr8 129.678
a second lookup table
S1 GGHBBGG/DEDD(@DCCD) (8 Replies)
Discussion started by: jianp83
8 Replies
LEARN ABOUT NETBSD
pcap_get_selectable_fd
PCAP_GET_SELECTABLE_FD(3) Library Functions Manual PCAP_GET_SELECTABLE_FD(3)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 on most versions of most BSDs (including Mac OS X) 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), a simple
select() or poll() will not return even after the read timeout expires. 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() indi-
cated 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; how-
ever, 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(3), select(2), poll(2)
5 April 2008 PCAP_GET_SELECTABLE_FD(3)