02-20-2013
Thanks for your response, Alister.
What do you mean by unsynchronized? The example I gave was just for simplicity, but typically the scripts are perl or python programs that read the file (gigabites in size). But don't write to it or append anything.
Just wondering if I am screwing things up by accessing the file with multiple programs.
Thanks again,
Torch
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
if i have a program (example admintool), if i want to keep a log of what i did in admintool,
can i do this admintool > admintool_log.
i have tried but the system just waits there....
then i did a kill and see the file.
the file has the main menu screen...
basically, i want to keep a log... (3 Replies)
Discussion started by: yls177
3 Replies
2. Shell Programming and Scripting
I wanted to know the format everyone uses for cfg files that are called by shell programs. I do mostly sh and ksh scripts and many times I'm modifying an existing script to do another task.
Recently I have been making my scripts more generic and using configuration files to hold uniq details.... (3 Replies)
Discussion started by: tomas
3 Replies
3. Shell Programming and Scripting
Hi All,
I have encountered a problem,please help me.
I have a script in which multiple processes are writing on to the same file .
How should I stop this , I mean lock mechanism can be implemented or we can write the at different files and then concatenate the files.
What would be a better... (1 Reply)
Discussion started by: Sayantan
1 Replies
4. UNIX for Dummies Questions & Answers
Hi,
i want to call two programs simultaneously from a currently running program so as to distribute the job and fasten the speed.
As of now I call the programs one after the other within the main program.
e.g.
`perl A.pl`;
`perl B.pl`;
how can I run the two paralelly?
urgent ... please... (1 Reply)
Discussion started by: vipinccmb
1 Replies
5. UNIX for Dummies Questions & Answers
I was curious how to tell which programs are accessing a file (libobjc.A.dylib) in /usr/lib
This file seems to be the culprit in a bunch of Safari crashes, and I just wanted to know if and what other programs use it.
Also, I was curious what a good way to find out what files are being written... (4 Replies)
Discussion started by: glev2005
4 Replies
6. UNIX for Dummies Questions & Answers
Are the programs written on schedulers ,thread library , process management, memory management, et al called systems programs ? How are they different from the programs that implement functions like open() , printf() , scanf() , read() .. they have a prefix sys_open, sys_close, sys_read etc , right... (1 Reply)
Discussion started by: vishwamitra
1 Replies
7. Programming
Flow of program:
C based CGI is used
CGI1:
-Gets called when user hits upload button(submit) ie form action = CGI1
-Does the file upload (copy to a directory etc)
JS, Ajax fucntion:
-A JS function is called when user hits upload button
-The JS function opens an Ajax request for CGI2... (8 Replies)
Discussion started by: xs2punit
8 Replies
8. Shell Programming and Scripting
Hi,
I'd like to redirect the STDOUT output from my script to a file and simultaneously display it at a console.
I've tried this command:
myscript.sh | tail -f
However, it doesn't end after the script finishes running
I've also tried this:
myscript.sh | tee ~/results.txt
But it writes... (3 Replies)
Discussion started by: wenclu
3 Replies
9. UNIX for Dummies Questions & Answers
Hey guys,
Suppose i run passwd via bash shell. It is a suid program, which temporarily runs as root(owner) and modifies the user entries.
However, when i write a C file and give 4755 permission and root ownership to the 'a.out' file , it doesn't run as root in bash shell. I verified this by... (2 Replies)
Discussion started by: syncmaster
2 Replies
10. Shell Programming and Scripting
Hello Team-
we would like to implement an approach which has to write the log file simultaneously
when .sql file is executing by Unix process. At present,it is writing the log file
once the process is completed. I've tested the current process with the below
approaches and none of them... (1 Reply)
Discussion started by: Hima_B
1 Replies
LEARN ABOUT DEBIAN
gtk2::gdk::keysyms
build::Keysyms(3pm) User Contributed Perl Documentation build::Keysyms(3pm)
NAME
Gtk2::Gdk::Keysyms - key codes for Gtk2 programs
SYNOPSIS
use Gtk2;
use Gtk2::Gdk::Keysyms;
#
# the most common use is for deciphering keycodes in key events,
# like this:
#
sub key_press_handler {
my ($widget, $event) = @_;
if ($event->keyval == $Gtk2::Gdk::Keysyms{Escape}) {
abort_whatever ();
return 1;
}
elsif ($event->keyval == $Gtk2::Gdk::Keysyms{F1}) {
do_help_thing ();
return 1;
}
elsif ($event->keyval == $Gtk2::Gdk::Keysyms{KP_Enter}) {
execute_selected_text_as_command ();
return 1;
}
# we didn't handle it, pass it on...
return 0;
}
DESCRIPTION
Gdk defines symbolic names for the codes associated with each key on a keyboard, so that you don't go nuts with numeric values in your
programs. The hash %Gtk2::Gdk::Keysyms holds all those keycodes, indexed by the name, for use in your perl programs when you need to do
custom key handling. This commonly occurs when you want to bind an action to a key that isn't usable as an accelerator, or when you don't
have accelerators, or if you're trying to write an easter egg, or whatever.
As the list of keycodes is quite large and rather rarely used in application code, we've put it in a separately-loaded module to save
space. As an alternative, you might want to investigate "Gtk2::Gdk->keyval_from_name" which offers basically the same functionality as the
hash.
To get a list of all available keys, either dump %Gtk2::Gdk::Keysyms, or look at the source of this module with "perldoc -m
Gtk2::Gdk::Keysyms".
AUTHOR
This module was automatically generated by a very simple perl script from gdk/gdkkeysyms.h. Programs that write programs are the happiest
programs of all.
COPYRIGHT
Copyright (C) 2003, 2009 by the gtk2-perl team (see the file AUTHORS for the full list)
This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA.
SEE ALSO
perl, Gtk2, Gtk2::Gdk
perl v5.14.2 2012-05-27 build::Keysyms(3pm)