$ cd -; echo $? -bash: cd: OLDPWD not set 1 We can use$?which is a special parameter in Linux that contains the exit status of the most recently executed command in the foreground. 3. Equivalent Command tocd – Notice in the previous examples, we may see that thecd –command is ...
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...
What Does the rm rf Command Do in Linux - 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
Question 2: What command would you use to change to a different directory? What is an operating system? What is the primary use of the ping command? Question 5: What command deletes files and directories? What does the following command do when typed in Kali Linux's terminal window? nmap...
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 ...
What is Grep Command in Linux? Why is it Used and How Does it Work? If you use Linux for regular work or developing and deploying software, you must have come across the grep command. In this explainer article, I'll tell you what is grep command and how does it work. ...
In Linux, these directories in the so-called “pyramid” exist in a hierarchy with a specific structure. This can be observed in your terminal by using the command: $ cd / , and then displaying the directories and files while in the top level directory. (shown below) ...
What is SAP HANA (and why does it run on Linux)? SAP HANA is an in-memory database that helps organize and analyze big data for SAP ERP applications. Linux resources
When a node is abnormal, Kubernetes will evict some pods on the node to ensure workload availability.In Kubernetes, both kube-controller-manager and kubelet can evict pod
What is the-f Command in Linux? Usually, you can use the f command option in different commands to get different results. Tar Command Let’s use the tar command with and without the -f option: tar-xsample.tar.gz As you can see in the previous image, the terminal is showing an error...