What happens after mounting filesystem from file? Example: I have rootfs.ext2 file which is located in data directory and mounted under /mnt directory mount rootfs.ext2 /mnt After removing rootfs.ext2 I still can use files under /mnt directory, cat file, run binaries, etc. rm -f rootfs.ext2 I was thinking that rootfs.ext2 file still exists in data directory however it was deleted.
Unable to compile flutter app in release mode on linux
I am running a linux app on a Debian 11 arm 64 in debug mode and everything is fine, please see the logs in my github issue because it was too long for SO. When i try to run it in release or profile mode, the flutter tool doesn’t seem able to compile : It seems to be thrown with
Process “aws ecs list-tasks” JSON output with “aws ecs execute-command”?
For example do this command. then it returns below then do next command using the ae340032378f4155bd2d0eb4ee60b5c7 of return sentence. I want to do this thing in one sentence, or shell script. Is it possible? I googled around the regular expression, but still unclear. Could you give some help? Answer Manipulate JSON with jq jq is the best tool for manipulating
How to monitor all network traffic from a specific process in linux?
I want to monitor and log all traffic that a specific process produces. I know about tcpdump, but it seems it doesn’t support filtering by process (pid/path, or at least user). It there any other way to log all traffic from a process? Ideally I should be able to filter ports as well. Thanks! Answer You should use strace command:
Should fsync() be called before or after write() call?
I understand the working of write() call wherein it writes the data only to kernel’s buffers which is later written to disk by kernel after sorting the data optimally. Calling fsync() on file descriptor makes sure that data is written to disk as soon as it’s posted in the kernel’s buffer. My question is, whether fsync() should be called before
“The system cannot find the file specified” when using SecureCRT SFTP to download file from Linux server to Windows
I want to download a file from my Linux server to my local Windows PC. I used SecureCRT to build an SSH connection and then use SFTP get command to download, but failed: I found out that it is possible to upload files from Windows to Linux. But unable to download any file from Linux to windows Very confused, I
how to use untar() in R linux?
I’m getting this error when I use untar() command used: untar(tarfile = “a.rar”, list = TRUE) It works when I use on my PC (Windows 10) but does not works on another PC (Linux 20.04) Thanks Answer This isn’t correct: You should specify a tape archive file such as “a.tar”, rather than a RAR-format file. The underlying utility on Windows
How to find process arguments of running processes in dotnet c# on linux
I have a program that needs to kill any other instances of itself when it starts. In windows I can do this well enough (without WMI) by getting processes by name and searching for the exe of the application (which is unique enough for this to work well enough). In linux it’s all dotnet foo.dll so every dotnet application is
“PHP Warning: PHP Startup: Unable to load dynamic library ‘/usr/lib/php/20160303/http.so'” after downgraded PHP from 8.1 to 7.1
We have a requirement that needs to downgrade PHP from 8.1 to 7.1 in our Ubuntu 18 server. After the downgrade, we’re seeing PHP Startup error everytime we check php -v Below is the exact error text: The missing libraries are really not found in the said directory as I checked. We have tried reinstalling as suggested from other forum
Trying to install Docker on RHEL – docker-ce conflicts with Podman-docker
Getting this error: Updating Subscription Management repositories. Red Hat Enterprise Linux 8 for x86_64 – AppStream (RPMs) 22 MB/s | 45 MB 00:02 Last metadata expiration check: 0:00:01 ago on Mon 01 Aug 2022 17:36:44 BST. Error: Problem: problem with installed package podman-docker-2:4.0.2-6.module+el8.6.0+14877+f643d2d6.noarch package docker-ce-3:20.10.17-3.el8.x86_64 conflicts with docker provided by podman-docker-2:4.0.2-6.module+el8.6.0+14877+f643d2d6.noarch package docker-ce-3:20.10.17-3.el8.x86_64 conflicts with docker provided by podman-docker-1.0.0-2.git921f98f.module+el8+2785+ff8a053f.noarch package