A short note on inode number – Linux/Unix Inode number in Linux. It’s simply a reference (index) about the file and directory on the System. This is an entry in Inode table. This data structure uses to represent a file…
Administrative tools
Check the resource (cpu, memory) usage of users – Linux
In some high load situations, we need to find out the resource consumption of each users on the server to figure out the exact issue. There are a lot of options/commands available in Linux to find the same. Normally, we…
Load monitoring in Linux servers – top, w and uptime commands’ usage for checking the load on server
Load on Linux – top, w, uptime This is a necessary thing to check the load-average on your server for its better and stable performance. In a Linux server/system we can check the load by different ways. High load on…
Load & Memory monitoring using SAR command – Linux
Is there any way to get my server’s load and memory usage history from commandline? Yes, it’s possible by using the command-line utility SAR. System Activity Reporter is abbreviated as SAR. It is an important tool to monitor server’s different…
What is the difference between Tar and Gzip ? Details with example
I too had this doubt! what are the differences between “tar” and “zip” utilities in Linux. The answer is quit simple rather than the confusion. We all are very familiar about the word (extension) “.tar.gz“, it’s very common when we…
How to replace a failed harddrive in a software RAID 1 array?
Is it possible to replace a faulty drive from RAID 1? What are the steps? Here I’m explaining the detailed steps in replacing a bad drive from software RAID 1 array. As you know RAID 1 means mirroring. Here I’ve…
Introduction to Python – Say Hello World!
Why this category? Now-a-days we do not have much time to spend for repeated works. We all are busy with learning new things. And we required some automation tools to reduce the work load and save the time. Python is…