I'd like to determine what process has ownership of a lock-file. The lock-files are simply a file with a specific name that has been created.So, how can I determine what process has a particular file open in Linux? Preferably a one-liner type or a particular Linux tool solution would be optimal.
View 3 RepliesI am writing, well actually enhancing, a script to do a daily backup of important data on my PC to a second hard drive.I wish to tar my home directory to a single file - and will probably use gzip as well.So I decided to work out the correct tar syntax in a terminal first - here is what happened.I opened a terminal window.I cd to a directory not part of my home directory.I issued the command..Quote: tar -cvf mytar.tar /home/ken tar processed a bunch of files, the last being .netrc.I examined the tar file and it contains .netrc.The contents of .netrc are correct.I scrolled back through the list of files in the terminal window and do not see any error messages.I guess the question is... how do I determine what file tripped up the tar process?
View 8 Replies View RelatedI'm developing a serial port application under Lazarus using the SunaSer code library.
The application reports an error indicating that "the Port is opened by another process".
What command can I execute in a Terminal session to determine what process has the USB-serial port open?
How would I find out all the files a particular process accesses?
I am using Ubuntu 9.04.
I have Fedora Linux 13 64bit system. I use System Monitor to check which process is taking how much memory and cpu. Normally I have dozens of Chrome and Firefox windows open. The Processes tab shows which process is taking how much cpu/ram resources but I unfortunately there is no option like right click and make the window active that matches the PID (the one process that I have currently highlighted). Usually there is a chrome process taking up 30 or 40 percent of CPU while dozens other chrome processes taking much less cpu. I must determine which chrome window ( or any application which has multiple instances running) is taking that much CPU time.
View 1 Replies View RelatedI'm writing a C++ application and need to work with process substitution in the Bash shell. I'm trying to find a way to validate the paths passed as arguments to my program, some of which point to FIFO files created by process substitution.
Is there a shell (or C++) way that I can check if the system creates these files in /dev/fd or if they are created somewhere else?
one tell me the internal working of kill command. that is how it kills a process internally or from where it picks file to continue its process.
View 3 Replies View RelatedMultiple dirs full of mp3s All strictly encoded with exactly the same parameters (CBR 128kbps, Joint-Stereo, etc) Is it possible to determine the total playing time (to within ~98% accuracy) by some formula based on the total file size? I say ~98% accurate since ID3 tags do consume a small amount of space.
View 3 Replies View Relatedi have a folder with 10 files and i would like to determine the size of each file. i was trying the command
Code:
du -sh foldername
but i receive the total size .
I have Fedora Linux 13 64bit system. I use System Monitor to check which process is taking how much memory and cpu. Normally I have dozens of Chrome and Firefox windows open. The Processes tab shows which process is taking how much cpu/ram resources but I unfortunately there is no option like right click and make the window active that matches the PID (the one process that I have currently highlighted). Usually there is a chrome process taking up 30 or 40 percent of CPU while dozens other chrome processes taking much less cpu. I must determine which chrome window ( or any application which has multiple instances running) is taking that much CPU time. So can some one help me to solve this problem?
View 1 Replies View RelatedIn Linux, I'd like to know how to find the file(s) if any which as using a particular sector on the hard drive (ext2/3). There is a similar question here regarding Windows, however I need a Linux command line solution (this is a headless system).
View 1 Replies View RelatedIs there any way to tell which file or directory this is referencing in particular?
View 8 Replies View Relatedif there's a tab-delimited file under /usr/desktop, how can I determine the number of rows and columns of the file in shell?And, if told the the 3rd column of the file contains only numerical values and all values in the 5th column are unique, how can I verify these in shell?
View 13 Replies View RelatedI had only Arch on an HDD.sda2 was "/".Now it's with Windows XP and sda2 is not a root any more but a container partition wich has sda{5,6,7} in it. I configured the dual boot and it works. It finds Arch and boots it, but not completely. Stops after some time and says: unable to determine the file system type of /dev/sda2. FSTAB is configured, sda{5,6,7} are on their places. So I can't boot Arch. XP boots correctly. What do I do with this error?Also it says: try adding rootfstype=your_filesystem_type to kernel command line.
View 4 Replies View RelatedI've asked this question more or less before on stackoverflow and believed it to be solved (hence accepted the answer) but it turns out it wasnt solved.In simple terms, I've written a python script which just outputs text constantly to stdout, thats all it does 24/7. I've linked it to this xinetd file
service myservice
{
instances = 1
[code].....
Is there a way to determine the time of last reboot and open all sessions and/or files that were open with a BASH script?
Oh also on this topic, does anyone know where a good repository of BASH, PERL and other Linux System Scripts are?
I am writting a script to allow uploading of certain files. I want to limit the files by their filename and mime type, and by making sure the two match up.The first thing I need to do is make sure I've got all the mime types I need added. I have never done this before, but I understand that 'file' (which is what PHP's mime-type finding is based off of) uses magic databases that tell at which point in the file should have signatures of the filetype.
My trouble started when I was unable to determine the filetype of any of my video files. Currently, I have some .MOV and .MP4 files that I am using to test.
I've some file with .sh extensions that runs some softwares.Now,how do I stop running that filesI know we run the command ./start_tomcat.sh to start the apache.Is there any command to stop that file/process or is it just kill the process to stop the process
View 2 Replies View RelatedI'm using CentOS 5.3. After booting up, where can I find the log file that contains if all services where successfully loaded or not? For example when computer boots you get a list of start services and they can be OK or FAILED. Is there a log file where this information is kept? I had a look in the following directory /var/log/ but not sure which one will contain the informaiton that I need.
View 2 Replies View RelatedI'm trying to use the 'at' command to run a file that checks ALL process running at 5:00pm and does a system load check? Any advice on where to start?
View 7 Replies View Relatedi have recently started a bit of sh coding. i was trying out sm commands from an sh file.
#!/bin/bash
txt1="top > temp.txt"
eval $txt1
[code]....
Means I want to execute two executables one by one at the same time as shown below:execute1
execute2these are two executables. but the second one is executed after 1st one is closed is there any way two execute both.One way isgnome-terminal -e execute1execute2but here i want to hide the terminal window..........
I work for a company that makes portable devices running Linux and I was recently asked to make the underlying file system read-only for "security" purposes. Since the distribution is based on LinuxFromScratch, I know that very little writing happens at run time. So, even if the device runs on a usb flash device, I doubt that putting the root file system RO will be that beneficial. I am actually more concerned about a process actually breaking because it cannot open a file in RW mode than a process going rogue and filling the root file system with log files, etc. I'd really like to ear what kind of advantages disadvantages there really is with read-only file-systems.
View 6 Replies View RelatedI'm currently stuck at 6.13 GMP-5.0.0 of the LFS installation. After running make, I receive the following:
error while loading shared libraries: libbfd-2.20.so: cannot open shared object file: No such file or directory
make[2]: *** [libmpn.la] Error 127
make[2]: Leaving directory `/sources/gmp-5.0.0/mpn'
[code]....
How can I check and set who can view or open a given folder or file?
View 1 Replies View RelatedI am using xubuntu and there are a few types of files on website that instead of downloading and saving and then opening with emacs, I would rather when the radio button choice comes up say open with emacs. I am using xubuntu with xfce, and there is no line for a command to be entered as some ubuntu editions have. In the choice of changing the opening program from mousepad to something else, it says search and allows to navigate to find a program, but I cant find emacs anywhere not in etc/ or elsewhere. So where is its executable to direct the program chooser to?
View 1 Replies View RelatedI'm trying to install PCSX2 (PS2 emulator) and I get the following error: ./pcsx2: error while loading shared libraries: libgtk-x11-2.0.so.0: cannot open shared object file: No such file or directory
I've followed the instructions here http://pcsx2.net/downloads.php and believe I have all the dependencies installed. My system has the following file:
/usr/lib/libgtk-x11-2.0.so.0
error message when I ran my program that I couldn't open my local file. I have two files first one is called client, second one is called server I am using named pipes to sent a message from client to the other file called server in client I used mknod() to create the two named pipes,one for read,one for write and created new thread in client using fork() spawned a child process that executed the server file both named pipes are opened the client file got the message from the user and sent it through the named pipes to the server file when the server receives the message , it needs to verfify it is correct in the server file, a local file descriptor is created to read and send this verifing message when it is not correct but I am getting an OPEN() error when I tried to open this shared local array buff and attach it to a file descriptor where the message is kept why do I get this error in server file
int main()
{
/*both named pipes are open*/
rfd=open(IFIO1,0);
wfd=open(IFIO2,1);
[code]....
how to verify if the file is binary or text without to open the file
View 2 Replies View RelatedI am using RHEL 5.I have a very large test file which cannot be opened in vi.The content of the file has some 8000 lines.I need to view ten lines between 5680 to 5690.How can i view these particular lines in a large file.what is command and option i need to use.
View 1 Replies View Related