In order to simulate sdn networks i downloaded the mini net 64 bit version and imported it in vmware Workstation pro 12 and through github all the project related stuff have been installed but the thing is when i wanna run it i encounter an error , do you think it’s because of the mysql not being config…
Where is mod_passenger.so, installed with yum?
I have a combo of Centos 6-Apache-Passenger-Ruby. Install was made following instructions here. I also have whm, which means changes to httpd.conf must be made by click. While trying to include /etc/httpd/conf.d/*.conf, tells me there is an error because: Cannot load /usr/local/apache/modules/mod_passenger.so…
Creating three children in C that have the same parent
My problem is that the children does not have the same parent and does not appear correctly, here is my code: As of right now when i run the program i will get this as output in bash, where bash has the PID of 11446: How do i get the first child to appear first, second child to appear second
Remove string in file on linux
I am looking to remove the _id field and its value which changes: I would like to use sed or any other command. Answer It is easy with jq. O/P:
G++ cannot resolve paths when called from subprocess
I am writing a small python script to for automatic student homework evaluation. I have a skeleton, where submitted homework is unzipped into a temporary folder and my script is called with path to the temporary folder as an argument. My script first copies over some extra files I need and then tries to compi…
Why is execvp() executing twice using fork()?
I am implementing a shell. When attempting a command other than changing directories, execvp() runs, the child terminates and a new child is created. When I change directories, the child does not terminate and a new child is created. Here is a sample of my code: cd ../; ls; runs correctly, except I have to Ct…
How to find if remote host is reachable over SSH without actually doing ssh
I have multiple remote hosts connected to my local host (server-A). TO ensure/filter the list of hosts which are genuinely reachable to localhost , I do ping test. However ping test could not provide me any check to ensure that filtered remotehost-IPs are reachable over SSH connection /port 22. Query: Above c…
Building RPM to install .desktop file that contains MimeType
I’m trying to build RPM to install .desktop file that contains MimeType, because .desktop file contains MimeType it needs update-desktop-database command to take effect after placing .desktop file in /usr/share/applications, how to do so? Answer I have achieved this by adding the following part after %i…
How to execute a shell script using CMake post_build?
How to execute a shell script using CMake? The command that should be run is my_script that should be executed after build. The CMakeLists.txt DISCLAIMER Yes, there are similar questions in SO here, here, here, etc; however, they don’t give me a clear vision how this can be achieved. Answer You are invo…
hard-coded bin path and NixOS
When I try to do a manual source install of some software on NixOS 15.09, I get (sh -x is to get an exec log): And indeed there is no bash program in /bin/ However when I inspect the script I dont see any mention of it so it must be some subprogram looking for it. As an aside, I