Linux and Unix, Open Source, Linux Howtos
When you are working on text files you may need to find and replace a string in the file. Sed command is mostly used to replace the text in a …
How to Find and Replace a String in File Using the sed Command in Linux Read More
The primary function of the SAR command is to collect system performance data every day and store it in log files for later display, it collects sar statistics every 10 …
How to Check Avg CPU and Memory Usage from SAR Read More
If you want to figure out how long a process has been running in Linux for some reason. We can easily check with the help of “ps” command. It shows, …
Five Ways to Check How Long a Process Has Been Running in Linux Read More
sed command stands for Stream Editor. It is used to perform basic text transformations in Linux. sed is one of the important command, which plays major role in file manipulations. …
How to delete lines from a file using sed command Read More
Are you curious to check when the Linux Operating System (OS) was installed on your machine ? It could be for various reasons. Recently I had a requirement to find …
How to check Linux Operating System (OS) installation Date And Time Read More
There are many reasons for systemd crash/go down on Linux, which you can investigate and fix ,but it is time consuming. One thing you can do it immediately to bring the …
How to configure systemd to start a service automatically after a crash in Linux Read More
As we all know terminal is a crucial tool for Linux admin, which allow them to perform any kind of task in a secured manner. When you type password in …
How to display Asterisks(*) when you type Password in Linux Terminal Read More
If a password policy is pre-implemented in your organization, then there is no need to verify this, as locked accounts will auto-unlock according to the configuration. However, manual unlock is …
Four ways to lock & unlock a user account in Linux Read More
Most of us will free up the disk space whenever we face out of disk space on Linux system. It should be performed frequently, to make space for installing any …
5 Easy ways to free up space (Remove unwanted or junk files) on Ubuntu Read More
NTP stand for Network Time Protocol, which synchronizes the clock between computer systems over the network. NTP server keep all the servers in-sync with accurate time to perform time based …
How to verify if NTP sync is working on Linux? Read More