If I execute the script I see the formated error message in /var/log/error.log, as to be expected. After the script execution, I hoped "logErrors" was not executing anymore, but when, in another terminal, I call "echo something > /tmp/errorlogfifo", I still see the formated error message "something" in "/var/log/error.log". How can I finalize "logErrors" before the script ends? Or, maybe someone knows a better way to format and log the erros in a script.
I forgot to say that the file "/tmp/errorlogfifo" is a named pipe created by the command "mkfifo /tmp/errorlogfifo".
I want to enable a function which is called clone mac...see in the picture. while, some systems don't support such a function... such as centos, the picture was taken in ubuntu 11.04... so, if i want to enable the function in centos or some other distributions which doesn't support this originally, what should i do? is upgrading the network manager functional?
I have our own C written program code which is communicating with a third party C++ written program code to run a moving device. We have successfully communicated with the third party code with wrapper functions. (Thanks to member in LQ that helped me solved this.)Now, we tried to run some functions to move the device. I think it is better for me to attach the related code first. pro.c (The source code we used to run the device)
I am using Debian linux. I have 100 timers running. If a timer expired which will generate a signal and it was mapped to a same function handler. All the timers are mapped to one function handler. The problem is if the timer expires one at a time, the function handler called at a time. But if the 2 timers expires at a time, the function handler is called one time only instead 2 times. Is it possible to invoke the function handler as many times based on timer expirary happens simultaneoulsy?
I wanna write a file in kernel space but from my searching I can to know that instead of writeing file in kernel space ,I can write data to user space by copy_to_user space.
But link is missing ...I dont know how will my user space will access kernel space means my function in kernel space which will do copy_to_user /....How my user space function will call my kernel level function ..
Can any one of you provide me with some example file which are doing this .I know every char driver is using it ...but i could not trace back how user level function is accessing it ...i m confused between user space and kernel space.
I have a start and stop script registered with chkconfig for a fuse mounted drive. I can /sbin/service scriptname start and /sbin/service scriptname stop with no issues.
The stop script unmounts the drives and then stops the service with a function to wait until the pidof service is gone. My drives are showing up as dirty on reboot, which should mean that my script that functions normally in cli, is running out of time and possible being ignored by service after a certain wait period when shutdown -h now is issued. System is a remote server so I can not view the output during shutdown. How can I increase the wait before /sbin/service issues a [FAILED] if that is the case on shutdown? The startup script runs, however the shutdown script does not...the script does work though with the service scriptname stop command.
I feel there's a bit of a misunderstanding going on between C++ and me...My problem is that I have a deque of pointers to a class, and create objects then add them to the deque in a for loop. However, the destructor is called on the object as soon as the loop quits.
Code:
This prints:
Code:
Now, if I change the deque from deque<Test*> to deque<Test> then it works fine - I get:
Code:
However, I can't do this with my actual code, because I am creating a deque of pointers to an abstract class, so it won't let me instantiate the class. (This is all so that I can take advantage of polymorphism, and call functions on a set of similar objects without worrying what type of object I'm dealing with).
So, I suppose my question is: what is the correct way to create that deque of pointers to the abstract class? I don't seem to be barking up the right tree currently.
the function terminates if no key is pressed for 10 consecutive seconds. I tried using the -t option as suggested in some forums, but my version of showkey doesn't have the option of changing the timeout. The options I get are:
-h --helpdisplay this help text -a --asciidisplay the decimal/octal/hex values of the keys -s --scancodesdisplay only the raw scan-codes -k --keycodesdisplay only the interpreted keycodes (default).
Is it possible to write a script to use this function and still keep the function active until an interrupt is recieved?
I want to copy a file from an old directory to a new directory and ideally I would like that the 'mv' command itself could create the directory for me in one step...That is to say that the directory would not exist until 'mv' has been called as in:Code:mv olddirectory/file.dat newdirectory/file.datso mv would create the directory 'newdirectory' in the above call....I am not sure if this is possible however, that is to say I think it may be necessary that the directory 'newdirectory' already exists before I make the above call to mv, as when I make try the above call when 'newdirectory' doesn't exist I get the following error:Quote:mv: cannot move `test1/4215/4215-001R.fit' to `test2/test.fit': No such file or directoryso to sum up, my question is:is there some paramater for 'mv' that I can change so that it will create the new directory as well as copy the file and if not, are there other commands that might do this?
Profile is getting called twice for every login change. Interestingly when i use SU, it is invoked once only. how to set profile to be called only once.
I was looking around the files in /etc/ to see what they were and what they said, then I noticed there was two files called passwd, which confused me a lot for a second then I noticed one of them was actually passwd-.I compared them and they only differed by one line: < games:36:35:added by portage for gemrb:/usr/games:/bin/bash, which was in passwd but not passwd-.Should these files both exist? If yes, why, what does having both do? If no, then its safe to say I can just delete passwd-
1. What is it called when you move a PDF window while it is loading and the window manager does not keep up with the image, (it gets all blurry when the window is moved?)Why does this happen?
2. Why is it that when a browser window is clicked to load a new address it won't always go to it. It has to be clicked again.
3 Why is it that sometimes IE is the only browser that will work on XP. FireFox and Opera will not load a page but IE will.
4 Why is it that Firefox on Linux sometimes everything inside the window is slow to appear. It has to be closed to fix it. When the contents does appear it is all at once.
5.Why is printing different things on Linux a problem. I have a lot of inconsistency with trying to print things from Evince. Some docs print and some won't. Copying and pasting is also a problem for Evince.Why?
6. Is there a way to have Linux Shut down after computer activity has stopped and not just with a timer. Lets say I'm trying to download something and I want it to turn off after it has finished with the down load.
7. Why are some Web pages biased towards Windows. I notice that some java scripts will only run right on Windows machines with IE. A lot of on-line forms are like this.
8. Can (MOVIES, PICTURES AND MUSIC) torrents be downloaded on Linux without risk?
9. It seams that Linux browsers do not keep previous web pages in memory so if you want to go back Linux always has to reload them from the server. Why is this?
10. Why is it that browsers sometimes won't indicate that the page has finished loading, "ever".
11. Why does Linux turn on the number-lock when loading its self?
12. Why can't the brightness be adjusted in Totem? There is a menu to change it but it does not work.
In this shell script, I want to print out which shell script called this. In this case, sh1.sh called sh2.sh. So, I want to print out "sh1.sh".How to achieve?
Exactly what sequence of files are called as in the .my_profile,.profile,.vimrc,.vim. These are few files that I are there on the server. I want to know which file is called first and what sequence. Also can you point me to some links that tell exactly what are these files for.
whats the difference between restarting/stopping apache using 'service httpd restart/stop' and apachectl restart/stop. I know that using 'service httpd restart' is actually a script in /etc/init.d/httpd but what about apachectl?
I've got a script in ubuntu 9.04 in init.d that I've set to run on start on with update-rc.d using update-rc.d init_test defaults 99. All of the symlinks are there and the permissions appear to be correct
I've been trying to download a visual novel called wanko to kurasou, my laptop doesnt have a disk drive so i have to download it. i found something called 'onsrcipt' but it only works for certain games, do i need a windows emulator or something.
I bought a multifunction stylus sx218 Espon model and I can not run the scanner function. I did some research and found a few solutions and very functional. I hope someone solves the problem. My version of openSUSE 11.2.
I am doing some Linux kernel programming for my research project. I need to record the timestamp (by using cpuid and rdtsc) when an interrupt handler (top half) is first invoked. Due to the time critical nature of the problem itself, I have to do the timestamping inside the interrupt handler itself (the first operation when the handler is called). However, I understand that tasks that are not so time critical should be deferred to a tasklet function (bottom half) for processing because other interrupts are disabled in a (top-half) interrupt handler. I am currently out of idea on how I can pass the timestamp information that I have obtained in the interrupt handler to the corresponding tasklet function.
I'm trying to compile a program from source. When I run make the following appears:./ config. status --recheck make: ./config.status: Command not found make: *** [config.status] Error 127.There is no file called config. status in the current directory. Why was it not created?
Before I begin I would like to say that while I am not a Linix newbie, I am not a guru or even a regular user so don't assume I have anything more than general Linux knowledge. I am carrying out research involving virtualization and Single Sign On technologies and I need to display a Xen based virtual machine to the desktop before the user is logged in. This is for a demonstration system and I am trying to find a solution that involves the least amount of system modification possible.I found a PAM module that allows for the invocation of arbitrary shell scripts which would allow me to start and display the virtual machine in question, but when trying to run the virt viewer (or any process with graphical output) I am informed that the display cannot be found. Explicitly setting the DISPLAY env to :0 before running the command has no effect.
This is where my Linux knowledge runs out. I know that there has to be some way to connect to the X session being used by the greeter, I just don't know what that method involves. The shell script is running with root privileges, so it can access whatever "X credentials" are stored locally.
I will be thankful for any assistance this forum might be able to provide, but please do not suggest alternatives to displaying a VM for my SSO needs, and please avoid any solution that involves having to write my own custom greeter. If there is absolutely no way to accomplish what I am trying to do without greeter modifications definitely tell me, but I am a security researcher, not a Linux developer so I am looking for the easiest solution to implement, even if that solution is a gross hack.
I'm currently using OpenSuse 11.1 web server. This is bad since 11.1 is no longer supported. the reason why I am using it is because Function set_magic_quotes_runtime() was no longer being used. (so I was told)
That being said, is there a way to get Function set_magic_quotes_runtime() to function on the newer versions of OpenSuSE?
Is there any software that can 'read' the log file in nagios and produce a so-called 'scoreboard' (something like a graph) to display the status of the services? I was told that one could 'read' the log file stored in nagios and create a scoreboard.
I installed Fedora13. But my Windows is Gone. I followed Next-->Next and completed installation after 1 hour. When i restarted the system, isaw blue screen something called grub and windows is not listed. I had important data in it where did it go?
i want to install a program called VMPK its a virtual keyboard, but through googling i seem to keep running in circles. The program comes as a tarball, which i have no idea how to install (still semi new to Linux... within my first 2 months)... i have read something about compiling it as an RPM but i cant seem to find anything else other than that... this is probably something super simple
