How To Extract Images From A Pdf File In Linux Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented by eBPF-based observability…
How To Output Function Stack In Linux Kernel Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented by eBPF-based observability tools for…
On Rocky Linux 9, using a normal user, encfs works just well. On Rocky Linux 9, using the root user, encfs works. However, the problem is, on Rocky Linux 9, using a normal user account, encfs does not work as on Rocky Linux 9. $ encfs -s ~/t/.enc ~/t/enc EncFS Password: fuse: failed to exec…
Dia seems not available in the official repository of Rocky Linux 9. How to install dia on Rocky Linux 9 Linux? You can find built dia packages in some additional repositories for CentOS. First, enable EPEL following this link. Second, enable Nux Desktop following this link. Then, you can install dia by # yum install…
The gnome 3 classic’s bottom panel looks not useful to me. I do not use it. How to remove the bottom panel in gnome 3 classic? That bottom panel is from the “Window List” plugin. The gnome 3 classic package depends on that plugin package on Rocky Linux 9 as far as I checked. And…
In Bash Script How To Join Multiple Lines From A File Bash remains the default shell for most Linux distributions and macOS systems. While newer shells like Zsh and Fish offer enhanced interactivity, Bash’s ubiquity makes it essential for system administration and CI/CD pipelines. The Modern Approach In modern environments (Bash 5.2+), prefer [[ ]]…
How To Redirect Non Www Domain To Www Domain In Htaccess Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented by eBPF-based…
How To Make Output Jpeg File Of Xsane Smaller On Linux Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented by eBPF-based…
How To Save The Output Of Screen Windows To A File On Linux Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented…
How To Detect Whether A File Is Readable And Writable In Python Python continues to dominate in data science, AI, and backend development. With the release of Python 3.12+, performance improvements and better error messages have made it even more robust for production environments. The Modern Approach Modern Python development emphasizes type hinting and asyncio…
How to set up the driver for an HP all-in-one printer/scanner on Rocky Linux 9 Linux? First, install these packages and it may ask you to download and install other plugins. Without these packages, my printer does work. # yum install hplip hplip-gui hpijs Second, install plugins for the HP printer. # hp-plugin Then you…
How To Make Tee Catch The Stderr Only In Linux Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented by eBPF-based observability…
How To Handle Spaces In Paths With Rsync On Linux Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented by eBPF-based observability…
How To Make A Unique Temporary File In Bash On Linux Bash remains the default shell for most Linux distributions and macOS systems. While newer shells like Zsh and Fish offer enhanced interactivity, Bash’s ubiquity makes it essential for system administration and CI/CD pipelines. The Modern Approach In modern environments (Bash 5.2+), prefer [[ ]]…
How to Check if a Key Exists in a Python Dict Checking for key existence is a fundamental operation in Python to avoid KeyError. The Code if ‘key’ in my_dict: print(“Exists”) Python in 2026 In 2026, the in operator is still the most Pythonic and fastest way to check for keys. For more complex logic,…
How to Collect VM Exit Numbers in KVM VM exits occur when a virtual machine needs the hypervisor’s attention. Monitoring these can help debug performance issues. The Command cat /sys/kernel/debug/kvm/exits KVM in 2026 In 2026, KVM remains the standard for Linux virtualization. For more detailed tracing, administrators use perf or ftrace: perf record -e kvm:*…
curtlftpfs is a nice tool to mount ftp to local. How to install curlftpfs on Rocky Linux 9? The software package for curlftpfs is proved in EPEL. To install curlftpfs, first, enable EPEL following instructions here. Then, install curlftpfs by # yum install curlftpfs Editor’s note: This article has been updated to reflect current software…
When we create VMs in KVM, we may don’t know the IP addresses because they are automatically assigned by DHCP. So we want to get them in VMM so that can login by SSH. Do the commands as follows. $ virsh domiflist hvm1 Interface Type Source Model MAC ——————————————————- vnet0 network default virtio 52:54:00:1c:36:cd $…
How To Use Vnc To Connect Remote Server With Gui Desktop Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented by eBPF-based…
sshfs is a nice tool. But it seems there is no support to it in a newly installed Rocky Linux 9 Linux system: Not installed by default: # sshfs -bash: sshfs: command not found Seems not available from the repositories # yum install sshfs -y Loaded plugins: fastestmirror Repodata is over 2 weeks old. Install…