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Tag: linux

How to examine and debug Yocto’s bootloader on i.MX6Q?

I am building a trusted execution environment on IMX6Q with a Linux Yocto version in the untrusted processor mode. When I switch to non-secure for the first time after reset to load the linux kernel, I get flooded with data and prefetch abort exceptions after I jump to the kernels bootloader.It also seems lik…

Join two csv files

csvfile1 csvfile2 expected output I would like to combine the columns longitude,latitude and timestamp of both the files. There are two longitudes and two latitudes in csvfile2. So i want to compare if it matches any one of the longitude-latitude pairs along with the timestamp. And the column name order is al…

Unable to access apache page on Linux Azure VM

I’ve setup a linux VM in Azure. I’ve added incoming port access to the current listening port on Apache. I’ve also done a curl localhost on the VM and see the apache html text. I hit the public IP of the VM and get nothing. Any ideas? Answer According to your description, please check those …

Apache not seeing website – CentOS 7

I have setup a lot of Virtual Hosts in Ubuntu but today I needed to do this on a CentOS 7 server. I installed Apache and setup the VHost config but nothing appears when I view the site. I know that Apache is reading my Config files because if I add a fault in it and restart Apache, it complains

Exclude list of file extensions from find in bash shell

I want to write a cleanup routine for my make file that removes every thing except the necessary source files in my folder. For example, my folder contains files with the following extensions: .f .f90 .F90 .F03 .o .h .out .dat .txt .hdf .gif. I know I can accomplish this with: Using negation, I can do this: B…

How to take input in beginning of the program?

I am making a program which needs the user input in the beginning of the program if you don’t get my question i will give you an example: So, I want the input in the beginning of the program. I think the input will be stored in a variable. If yes, Then please tell me in which variable it is