I have a code which i want to use to open a log file, extract the contents and save it into a variable so i can extract the data from the variable in the future. How do i do that? So far the code saves only the last data of the log file into the variable. I think the while
How to make LKM multi-process safe?
I make simple LKM (Linux kernel module) to interact my MPI application (multi process per one compute node) at user level with kernel level information. I need to extract some data from kernel to the user level application at runtime. My MPI application uses few processes run on the same compute node simultan…
Error: mime-types-data requires Ruby version >= 2.0
I recently install clean ubuntu14.04 virtual machine in vware fusion and updated it. I am trying to install the mime-tyes-data by sudo gem install mime-types-data -v 3.2015.1120 The error shows ERROR: Error installing mime-types-data: mime-types-data requires Ruby version >= 2.0. Before that I already upda…
Linux Mint: using qt creator with qt4.6.3
I have been trying to get my QT ide running to build some programs for FriendlyARM mini 2440. I have cross compiled the Qt and tslib for my target by referring:- https://importgeek.wordpress.com/2012/04/09/compiling-qt-and-tslib-for-mini2440-and-run-a-demo-app/ http://mini2440vietnam.blogspot.in/2011/04/upgra…
Auto restart or Proper Handling socket.io server on exception in linux
I’ved got my socket.io server running in the background. However, there are several situation where it died. What can I do to make my socket.io server auto restart whenever it dies or terminated. This is how I started my node server however the server thrown an exception and died. This is my environment…
Can’t connect to Tomcat9 outside
I can’t connect to tomcat9 from outside (by ip) i disabled tcp6 (add to /etc/sysctl.conf) following netstat -nlp output: server.xml Connector block: I also tried to add useIPVHosts=”true” to <Connector> and resolveHosts=”true” to <Valve> block in server.xml, but still…
Cannot get the available bytes from the unix domain socket
I am sending N bytes from a unix domain socket (AF_UNIX, SOCK_DGRAM) to another. However, if I read X bytes from the other socket, where X < N, a subsequent call to read() blocks and I cannot get the rest of the N-X bytes. Is this an expected behaviour for unix domain sockets? Is the rest of the N-X bytes
Unable to link openssl libraries to CLion C++ program
I have a CLion project. Here is my CMakeLists.txt: And here is error that I get: Answer Maybe you should try link_libraries(ssl) instead of link_libraries(openssl), if you’re sure of openssl installed on your local machine. See https://wiki.openssl.org/index.php/Libcrypto_API , it says that “OpenS…
U-Boot version extraction for comparision
I am trying to extract U-Boot version from its binary for comparison, consider that exact string what I want to search is as follow, so I wrote command with regex as follows, However I don’t see any output for that above command, I could make below command work which extracts version only by comparing v…
How to copy directory from remote server with scp, excluding a specific subdirectory
I have a directory that I want to copy from a remote server to my desktop. In this directory there is a 40Gb subdirectory that I want to exclude from copying. Until now I used the scp command but there is no -exclude option or anything similar in the man page. By looking online I found a bunch of different