SELECT(3P) POSIX Programmer's Manual SELECT(3P)PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond-
ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.
NAME
select -- synchronous I/O multiplexing
SYNOPSIS
#include <sys/select.h>
int select(int nfds, fd_set *restrict readfds,
fd_set *restrict writefds, fd_set *restrict errorfds,
struct timeval *restrict timeout);
DESCRIPTION
Refer to pselect().
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Stan-
dard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source
files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE /The Open Group 2013 SELECT(3P)
Check Out this Related Man Page
STAT(3P) POSIX Programmer's Manual STAT(3P)PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond-
ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.
NAME
stat -- get file status
SYNOPSIS
#include <sys/stat.h>
int stat(const char *restrict path, struct stat *restrict buf);
DESCRIPTION
Refer to fstatat().
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Stan-
dard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source
files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE /The Open Group 2013 STAT(3P)
I wanna remove a set files other than some selected files.
Eg.
:rolleyes::rolleyes::rolleyes:
a directory contains n files like
test1.dat
test2.dat
test3.dat
test4.dat
out5.dat
out1.dat
i wanna remove all files which doesnot name like *test*
I want to use this in shell... (22 Replies)
edit by bakunin: I have split the thread to reflect the two different themes it had. Read the original thread here. All the other posts there dealing with the new theme have been moved here, the ones which addressed both i have copied and edited. Enjoy the discussion.
BTW, you don't want to... (29 Replies)
Hi,
I need to get the value from the table using the sql command and store this value into the unix variable so that i can use this value for furthure use..
Please can any body help me in this regards
Thanks & Regards
Abdul Hafeez Shaik (17 Replies)
Dear unix gurus,
I have a data file that looks something like this ...
x y x y x y x y x y
0 3836 30 3915 60 5984 90 7388 120 8385
150 9038 180 9453 210 9745 240 9906 270 9962
300 9953 330 9915 350 9887 ... (22 Replies)
Hi there,
I have trouble selecting record that contain one biggest value for a group of other values. I mean, this is my table:
mysql> SELECT * FROM b;
+----+------+-------+
| id | user | value |
+----+------+-------+
| 1 | 1 | 100 |
| 3 | 1 | 150 |
| 5 | 1 | 300 |
| 6... (20 Replies)
Hey guys,
Is it possible to have a worker thread send data out a TCP connection while another thread is waiting using using select() on that same connection?
If not, then what is the correct way to maintain a connection, react to incoming data, and send data over a TCP connection?
Thanks... (16 Replies)
Greetings,
I am writing a script which requires as a part, selecting all the lines between the first and last occurrence of a pattern.
I have an nawk alternative that is working. But thre should be a generic script that should run on all os viz, linux, sun , aix.
The awk script that i... (25 Replies)
I need to get total number of rows in a table by using select count(*) from table and need to assign into a variable in shell script. I used the following script, it does return the number of rows but also with oracle headers, Please help me to eliminate this headers.
Shell Script
#!/bin/sh... (16 Replies)
Hi guys!
I'm new to scripting and I need to write a script in awk.
Here is example of file on which I'm working
ATOM 4688 HG1 PRO A 322 18.080 59.680 137.020 1.00 0.00
ATOM 4689 HG2 PRO A 322 18.850 61.220 137.010 1.00 0.00
ATOM 4690 CD ... (18 Replies)
Hi All,
I am looking for a simple concise solution most likely using sed to process the following 4 rows of data from the same record and only keeps it if the second record satisfy certain critea such as surname matches up to smith or jackson:
John (firstname)
Smith (surname) ... (21 Replies)
I have two files containing hundreds of different sequences with the same Identifiers (ID-001, ID-002, etc.,), something like this:
Infile1:
ID-001 ATGGGAGCGGGGGCGTCTGCCTTGAGGGGAGAGAAGCTAGATACA
ID-002 ATGGGAGCGGGGGCGTCTGTTTTGAGGGGAGAGAAGCTAGATACA
ID-003... (18 Replies)
Oracle Linux 5.6 64-bit
Given the below snippet
ORACLE_SID=''
PS3='Select target (test) database being refreshed: '
#
while ]; do
select ORACLE_SID in `egrep -i '^FS|^HR' /etc/oratab |\
awk -F\: '{print $1}'|sort` ; do
if ]; then
echo
echo "Please enter a... (19 Replies)
Hi i have a file in which i am doing some processing.
The code is as follows:
#!/bin/ksh
grep DATA File1.txt >> File2.txt
sed 's/DATA//' File2.txt | tr -d ‘ ‘ >> File4.xls
As you can see my output is going in a xl file.The output consist of four columns/feilds out of which the first... (20 Replies)
Hi,
I have file with thousands of lines somewhat similar to the below 6 lines
06MXXXXXXXXXXXXXXXX 0328 003529 J27300022 MICROSOFT *MSN
06<1 000000001344392 JPN151-85830 MSBILL.INFO F
06<A17087454000328651551 MSBILL.INFO ... (16 Replies)