sudo service httpd start|stop|restart|status what codes does the sudo do when you execute it? actually, sudo command is only a tool with which you can get some specific previleges to execute the specific command, you can understand above commands as this pattern : service script scriptparamet...
The rm -rf command is a crucial aspect of the Linux operating system that enables the deletion of files and directories. This particular command is often utilized in batch processing when a significant number of files and directories need to be removed. However, it is essential to be cautious...
The grep command does what the g/re/p commands did in the editor. It performs a global research for a regular expression and prints it. It is much faster at searching large files. This is the official narrative, but you may also see it described asGlobalRegularExpression (Processor|Parser|...
“How can we find out how many NICs are installed in our Redhat host without checking it physically?” As with everything else for Linux, there is a command that can do the trick for you and reports all the NIC cards that have been detected by the kernel. Below is all the commands ...
Kubernetes is a platform for running applications and services. It manages the full lifecycle of container-based applications, by automating tasks, controlling resources, and abstracting infrastructure.
What is its importance? Can it be enabled or disabled on the host? Environment Red Hat Enterprise Linux ethtool NICs hardware features Subscriber exclusive content A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more. ...
There are multiple ways that you can do this, but we’ll show you the easiest one down below: Short for “disk free”, df is a command used to display the free disk space in Linux and other similar operating systems. It is also used to understand and ascertain the file systems that ...
rm -vRemove a target in verbose mode What happens when you use the rm command in Linux? When you run the rm command and specify, which file or directory to delete (by default, it doesn’t delete the directory unless you use the-roption), it will delete the file or directory without...
Docker requires a Linux kernel version of 3.10 or higher. You can check your kernel version by running the command: uname -r CPU: Docker typically works well with modern CPUs. However, virtualization extensions (e.g., Intel VT-x or AMD-V) need to be enabled in the BIOS/UEFI firmware ...
Sample command:telnet 192.168.0.1 22. The following command output indicates that the SSH port is open on the instance: Trying 192.168.0.1 ... Connected to 192.168.0.1. Escape character is '^]' If the SSH port is closed on the instance, troubleshoot the issue as...