09-29-2009
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10 More Discussions You Might Find Interesting
1. Programming
Hi I am new to using pl/sql on a unix platform and am having trouble writing to a file from within a block. Below is an example of the code that I have. I know that I need to use UTL_FILE to accomplish this; however, I keep getting errors. Can someone please help me?
I am trying to create a... (1 Reply)
Discussion started by: stky13
1 Replies
2. Shell Programming and Scripting
Hi,
I am trying to do the following using AWK program.
1. Read the input data file
2. Parse the record and see if it contains errors
3. If the record contains errors, then write it into Reject file, else, write into usual output file or display it on the screen
Here is what I have done -... (6 Replies)
Discussion started by: vidyak
6 Replies
3. Shell Programming and Scripting
I'm having problems with writing my sql results to a file:
sqlplus -S username/password@DB <<!!
set echo off
set verify off
set showmode off
set feedback off
set timing off
set linesize 250
set wrap off
set pagesize 0
set newpage none
set tab off
set trimspool on
set colsep... (1 Reply)
Discussion started by: avillanueva
1 Replies
4. Shell Programming and Scripting
Hi,
I have a file in which I have database information along with 1 SELECT statement. Only 1 statement would be there. I want to grep this SELECT STATEMENT only and write into a separate file.
Input File format:
Database_Name:<database>
Schema_Name:<schema>
Table_Name:<table>
Select *... (3 Replies)
Discussion started by: ustechie
3 Replies
5. Shell Programming and Scripting
Hi All,
I have around 900 Select Sql's which I would like to run in an awk script and print the output of those sql's in an txt file.
Can you anyone pls let me know how do I do it and execute the awk script? Thanks. (4 Replies)
Discussion started by: adept
4 Replies
6. UNIX for Dummies Questions & Answers
Hi,
I have 1000 files names data1.txt through data1000.txt inside a folder. I want to write a script that will take each first line from the files and write them as output into a new file. How do I go about doing that? Thanks! (2 Replies)
Discussion started by: evelibertine
2 Replies
7. Shell Programming and Scripting
Hi All,
I have an input file containing data as below:
Input.DAT
XXXXXXX|YYYYYYY|ZZZZZZZZZZ|12334446456|B|YY|111111111|111111111|111111111|111111111|15|3|NNNNNN|Y|3|AAA|111111111... (11 Replies)
Discussion started by: sagar.cumar
11 Replies
8. Shell Programming and Scripting
Hi
I am trying to write output to a file in columns
I have file in the follwoing:
# cat file
abc
def
#
I am trying to write next output as like
# cat file
abc 123
def 345
#
:mad: (6 Replies)
Discussion started by: Priya Amaresh
6 Replies
9. Shell Programming and Scripting
HI
I am trying to grep 3 characters from hostname and append a character at the end.
I tried as in the following:
root@abag3:~# hostname | cut -c1-3
hyu
Now I am trying to append "g" at the end of this output as in the following.
root@abag3:~# hostname | cut -c1-3 | sed -s... (4 Replies)
Discussion started by: Priya Amaresh
4 Replies
10. Shell Programming and Scripting
Hello,
I am having problem while redirecting output to a file where as on console output is proper.
for dir in */; do printf "%s, " "$dir"; ls -m "$dir"; echo; done > output.txt
Output of above command is coming in single line but when i am redirecting output to a file, single line i... (10 Replies)
Discussion started by: Manoj Rajput
10 Replies
LEARN ABOUT DEBIAN
coro::select
Select(3pm) User Contributed Perl Documentation Select(3pm)
NAME
Coro::Select - a (slow but coro-aware) replacement for CORE::select
SYNOPSIS
use Coro::Select; # replace select globally (be careful, see below)
use Core::Select 'select'; # only in this module
use Coro::Select (); # use Coro::Select::select
DESCRIPTION
This module tries to create a fully working replacement for perl's "select" built-in, using "AnyEvent" watchers to do the job, so other
threads can run in parallel to any select user. As many libraries that only have a blocking API do not use global variables and often use
select (or IO::Select), this effectively makes most such libraries "somewhat" non-blocking w.r.t. other threads.
This implementation works fastest when only very few bits are set in the fd set(s).
To be effective globally, this module must be "use"'d before any other module that uses "select", so it should generally be the first
module "use"'d in the main program. Note that overriding "select" globally might actually cause problems, as some "AnyEvent" backends use
"select" themselves, and asking AnyEvent to use Coro::Select, which in turn asks AnyEvent will not quite work.
You can also invoke it from the commandline as "perl -MCoro::Select".
To override select only for a single module (e.g. "Net::DBus::Reactor"), use a code fragment like this to load it:
{
package Net::DBus::Reactor;
use Coro::Select qw(select);
use Net::DBus::Reactor;
}
Some modules (notably POE::Loop::Select) directly call "CORE::select". For these modules, we need to patch the opcode table by sandwiching
it between calls to "Coro::Select::patch_pp_sselect" and "Coro::Select::unpatch_pp_sselect":
BEGIN {
use Coro::Select ();
Coro::Select::patch_pp_sselect;
require evil_poe_module_using_CORE::SELECT;
Coro::Select::unpatch_pp_sselect;
}
BUGS
For performance reasons, Coro::Select's select function might not properly detect bad file descriptors (but relying on EBADF is inherently
non-portable).
SEE ALSO
Coro::LWP.
AUTHOR
Marc Lehmann <schmorp@schmorp.de>
http://home.schmorp.de/
perl v5.14.2 2012-04-13 Select(3pm)