I am using a Raspberry Pi to install coral USB following this link https://github.com/google-coral/tflite/tree/master/python/examples/classification. where i use the prompt command ./install_requirements.sh for machine learning inferencing and when i try to run ./install_requires.sh command it gives me the er…
Tag: linux
“add-symbol-file” can’t recognize .bss & .data symbols when using kgdb to debug kernel modules
I am trying to use gdb 8.3.1 for the kernel module on RPI-4 board. When I use the command add-symbol-file to add .bss and .data sections, it doesn’t work. The Kernel version is 5.4 and CONFIG_DEBUG_INFO is turned on. I list the simple code, dmesg and kgdb info below. If you have any idea, please give me…
How to displays the owner privileges of the files in the current directory in linux os?
I want to displays the owner privileges of the files in the current directory For example the output like this : I’m trying to write this command , but the output is not correct : Answer You just do this command :
Installing libc6 2.33 on debian
I would like to install libc6 2.33 onto a debian docker container for security patch reasons. I can see here that it has been released, and also it is noted here that 2.33 is available. Is there any easy way to get this installed onto a debian docker container? Is there a hard way to get this installed onto a
can’t change postgres 10.4 user password on AWS ec2
I want to add password protection to my psql db that I have set up on an Amazon Linux ec2 server. I only want the database to be accessible through the server instance(I am connecting to server via putty), and only with password authentication. Previously, my pg_hba.conf (located at /var/lib/pgsql/data/) look…
Get files access permissions using stat() in C
I just started learning linux/C, i just want to show the names of all the files of the directories given in argument, and their access permissions by using stat() which causes some problems. It actually shows the correct name/mode of all the files included in the current directory, but for the other directori…
Contents of large file getting corrupted while reading records sequentially
I have a file, with around 85 million json records. The file size is around 110 Gb. I want to read from this file in batches of 1 million (in sequence). I am trying to read from this file line by line using a scanner, and appending these 1 million records. Here is the code gist of what I am
Send a kill signal to self
I have a C++ code that runs a linux command, I want to simulate segfault i.e. SIGSEGV while executing that linux command from by C++ code. So my code looks like this What should I put in “cmd” so that it can send SIGSEGV to the sub-process created by calling this function? Answer Sending kill sign…
Wall time and cpu time in Linux command time
When I use Linux time command to measure time spent for running a command, which one below corresponds to CPU time and wall time? Answer which one below corresponds to CPU time user is cpu time in user mode, sys is cpu time in kernel mode and wall time? real
FTP upload in bash script
I tried to write a bash script which upload a file to an ip address with ftp connection, but i have an issue or something like that. I have a .txt file with a lot of line. Every line have an ip address, nothing else just the ip address. So i want to read the ip address from the text