Programming :: $1 Variable In Multiple Instances Of Same Script?
May 27, 2010
I am running a script that can run as many as 10 simultaneous times. During my testing, i noticed that if the script starts while another is in process, it inherits the $1 variable, which is always different.For example, the script starts with "scripthere.sh entry1", anther one starts almsot at the same time "scripthere.sh entry2". As the script is running, the second instance inherits $1 from the first script. So instead of $1 entry2, it shows up as entry1. how I can store $1 so that its unique to that instance of the script only?
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May 5, 2009
It is possible to run multiple instances of a jar executable. Is it possible that only a single instance of the jar runs? Wrappers like JSmooth or Launch4J can be made to run as a single instance. But since there are no such wrappers for linux, I need a way to restrict the jar to a single instance. How to embed the jar file into an executable such it runs a single instance?
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Aug 13, 2010
I have a file with the following in it:
:0 local /usr/X11R6/bin/X -nobanner
:1 local /usr/X11R6/bin/X
I need to add "-nolisten tcp" to both of these lines and cannot figure out how to do it. I can get it to do the first one, but not the 2nd and so on. How do I search the file and loop though it to change them all?
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Jan 31, 2011
I'm using Probe to monitor Tomcat5. The problem is that I've multiple instances of Tomcat.Can be used Probe to monitor multiples instances of Tomcat without having to deploy it to each instance?
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Jan 18, 2011
Why do I still get mutiple definition of "_my_variable" error even after I used the #ifndef preprocessor in my hpp file?
This is my scenario
I have:
1. A.cpp (including X.hpp)
2. B.cpp (including X.hpp)
3. X.hpp
[Code]...
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Oct 19, 2010
I have this complex log file filled with entries like
test1-G1/0/0-100-QOS-7001923-ROUTING (ClassMap)
Action: Resolved New
sysName: test1.local
[code]...
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Jul 13, 2010
I am trying to think of a logic where my file contains some data I had to read and do some processing. Issue is that file contains data multiple times. For example:
:::::::::::
var1=value1
var2=value2
[code].....
I have to read first paragraph of variables and do some processing and then move on until the end of file. Variable names are same in whole file but for each paragraph the value is different. I can't think of a logic to attain this task. How can I do it? It should be a simple bash script, but I am not able to work out.
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Jun 2, 2011
I am not able to execute a multiple sed statement using pipe filters in a variable. i am trying to extract a path from a file and then working on that path to change a few letters within the path by going through another sed statement.
the code looks like this code...
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Jun 24, 2010
Is there any way to run multiple instances of yum at the same time. The need is to speed up the install process.
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Nov 22, 2010
I have multiple hard drives with videos on them and i can only get the my xbox to read the 1st in my list of directories. So i wanted to know can i run multiple instances of ushare and use one for each hard drive? Is it possible?
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Jun 25, 2011
How can I make it so that I can open multiple new instances of the terminal app by clicking on the corresponding icon? I'm running 11.04 with Gnome 3.
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Jun 29, 2011
If I have a program running in one workspace and then switch to another workspace and open the same program it switches back to the first workspace.
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Feb 23, 2011
In windows xp, i created another user account. Now i can run a second instance of any program by right clicking on it and selecting Run as. Is such a thing possible in linux (centos or ubuntu) in graphical environment ?
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Oct 31, 2015
i'm new to linux, and i want to create mumble servers for my friends.My first server is finished and he works but, is it possible to create multiples instances of mumble ?
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Sep 9, 2010
I've got two sound cards fitted, before I've always killed pulseaudio as a pain in the butt.
Without pulseaudio enabled I could run two audio apps simultaneously, ie run a SDR ( software defined radio) app , and listen to music or watch TV at the same time.
However, with puls audio running, you can only run one, either input to either output. So can a second instance of pulseaudio be run, master and slave perhaps ?
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Mar 31, 2010
How can I have multiple independent instances of Mozilla Firefox 3.5 on the same X server, but started from different user accounts (consequently, different profiles)?
Limited success was only with Xephyr :1, DISPLAY=:1 /usr/local/bin/firefox, but Xephyr has no Cygwin/X's "rootless" mode so it's not comfortable (see other question).
The idea is to have one Firefox instance for various "Serious Business" things and the other for regular browsing with dozens of add-ons securely isolated.
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May 4, 2010
On Windows If I run Firefox as user jack, and then try to start another instance of firefox I will be unable to, as one is already running.If I choose to run firefox as administrator,then I can have two instances of firefox, separate from each other side by side, because they are under different user accounts.This does not seem to be true on Linux.As user jack if I start firefox, like on windows I am unable to start a new instance.If I open a terminal and change to root, set XAUTHORITY to jacks .Xauthority and try to start firefox as root....I get the error that firefox is already running.
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Feb 27, 2010
The great clock applet shows tasks and appointments from the evolution calendar. That's a great and fast overview of my agenda. But clicking a task of appointment opens a new instance from evolution every time, which is enormously annoying and really destroying productivity. I don't want 15 calendars open, I want the applet to behave like an index. So it should reuse the open instance and bring focus to the clicked appointment or task. How do I disable multiple instances of evolution?
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May 27, 2010
I have a test server on which I'd like to run up to 30 separate instances of a program as daemons, each running on a different IP address bound to the server. I've created a init script that takes an additional command line parameter - the last octet of the IP address. For example:
Code:
sudo myprog 40 start
sudo myprog 41 start
This would run instances of the program on IP addresses 192.168.1.40 and 192.168.1.41 respectively. But it's looking like this approach isn't doable if I wish to have any or all of these run at startup, as the links in the rcN.d directories can only link to the init script, not pass a parameter.
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Jul 30, 2010
I tried the google and browsing the known bugs in the sticky before posting this thread.On boot the machine is pegged at 100%. It is a dual-core with 4GB of ram and is running 10.04, 64bit. Also, as time goes on it eats up all the ram till theres maybe 32mb free. What happens is there are multiple 4-10+ identical processes running. seem to be gnome related.The machine sits idle on my floor and runs samba and apache/mysql/gallery for my test website that no on but myself visits.
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Oct 14, 2010
I have enabled netbook-launcher-efl and like the interface quite a lot, but it only allows me to launch a single instance of each application. I was told in an unrelated thread that there should be a setting in gconf-editor that enables multiple instances to be launched, but I thought it would be more appropriate if I broke that out into a separate thread.
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May 2, 2011
Using more than one instance of the same app is a real pita in Unity.If I have 3 (or more) pdf documents open in evince then there isn't a way to shift from one to the other using the mouse. Previously I had the windows on the taskbar and could click on the one I wanted. In Unity clicking on the evince icon on the launcher just brings ALL the instances of evince to the top - I still then have to shuffle the windows around to get the one I want.I've been trying to get used to Unity over the last few days, so maybe I am just doing it wrong, but if not then maybe I should file a bug report?
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Feb 1, 2010
I have a line of text with multiple web links in the line. I'd like to replace the actual links with the text "<web-link>" so I don't accidentally hit them while reading on my iphone. I've tried many versions of the following sed command, sed 's/(http.*)/<web_link>/g', but it simply replaces everything between the first instance of "(http" and the last instance of ")" with <web_link>, or does nothing at all.
Ex: This line has a link to a web page (http://www.webpage.com/file.html) then some more text (extra text) and then another link (http://www.nextwebpage.com.index.html) to a website.
$ echo "This line has a link to a web page (http://www.webpage.com/file.html) then some more text (extra text) and then another link (http://www.nextwebpage.com.index.html) to a website." | sed 's/(http.*)/<web_link>/g'
What I get is: This line has a link to a web page <web_link> to a website.
What I'd like is: This line has a link to a web page <web_link> then some more text (extra text) and then another link <web_link> to a website.
What am I doing wrong with my sed command?
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Sep 20, 2010
I need to run multiple squid instances on my server , I am running squid version squid-2.7.STABLE5-1.el4 on RHEL 4.7 , kindly tell me how to do so. by the way , I need to run two instance because i need to configure my proxy to act as a reverse proxy and a forward proxy, and people told me that you cannot run a forward and reverse proxy on the same instance.
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May 20, 2010
I know that bash can suspend and resume processes, but I am interested in forking and resuming them from different bash instances. So, for example, forking a gui app started from the console so that it will not crash when the terminal is closed. I currently know about screen, which can work, but I was wondering if there was a way similar to Ctrl+Z, bg and fg.
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Dec 7, 2010
I need to run two instances (i.e run the program twice, with two separate windows) of Audacious. This is for a play where I need to have music and sound effects going at the same time. I could do this while running Fedora 13, but after upgrading to 14 the audacious package was updated and now can't do this. My attempts at downgrading have been unsuccessful, and I need the audio done by tonight (the last rehearsal). So... am I up the river without a boat, or is there a fast solution? I'm open to anything, as long as the music player has advanced controls (play, pause, stop, fast forward, rewind, forwards track, backwards track) and can have two instances running at the same time.
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Mar 18, 2010
The first thing that comes to my mind is to add (copy) the script in /etc/init.d and the /etc/rc* directories by hand. Debian's automatic handling of init scripts on package install/removal is quite nice, so I tend to shy away from making any manual changes if there's an automated way to do it. Which leads me to the question: is there an official way to run a second instance of a daemon? (Tried google, didn't find much more than a bug report).
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Sep 6, 2010
Currently, a user is able to log into multiple terminals simultaneously, creating a copy of their roaming profile on each, and potentially causing problems if the instances are logged out in the wrong order. Is there any way to prevent this, so that if a user has logged in on a machine and not logged out (and perhaps some timeout has not yet expired) then their login attempts on another machine will be rejected.
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Mar 11, 2010
how to run multiple instances of a command line app from the terminal?
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Oct 16, 2010
I have been using totem player as my default video player. I've abstained from using VLC player considering the fact that it's got some security issues. Of late, I've installed and was mighty impressed by Mplayer because it could play .flv files which totem player couldn't. The only thing which I find irksome is its multiple instances. Can you please help me disable multiple instances in Mplayer. (I've experienced same problem in VLC player too, but right now I'm trying to stick with Mplayer)
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