Password Management should be simple. These command line password managers store our credentials, titles, web URLs, notes and other details in an encrypted file. We can use these tools to easily manage our credentials. We can even manage individual password files which [...]
LINUX COMMANDS
How to Show Progress Bar for Linux Commands
Many Linux commands like dd, cp, rsync, and mv are progressive but have no progress bars showing as they run. There is no built-in way to check the progress of ongoing operations except few commands that recently had commits ( [...]
15 Linux Screen Command for Dealing Terminal Sessions
The screen or GNU screen is a terminal multiplexer. Using this, you can run any number of console-based-applications, interactive command shells, course-based applications, etc. You can use screen to keep running the program after you accidentally close the terminal, or [...]
How to Find Large Files & Directories in Linux
Finding the size of large file and directories in Linux servers is one of the most important tasks that every system administrator came across in his daily tasks. So, every system administrator must know about multiple ways to find out [...]
What is TLDR and Explained How to Use it
Linux command line users must be familiar with "man" command. It stands for manual pages, which means that every Linux command or utility comes with the set of instructions or possible usage of the command. Man pages are of great [...]
How to Customize Shell Variable PS1-PS4 on Bash Prompt
You can see the real beauty of Linux when you use shell commands. There are some tasks which you cannot do in GUI and you have to use the shell. So having knowledge in shell commands, it will keep you [...]
13 Practical df Command Examples to Check Disk Space in Linux
The df command displays the disk space usage for the Linux filesystems. It displays the amount of total and free disk space available on the mounted file systems. Using the command, we can also find used blocks and inodes in [...]
How to Use Linux Hexdump Command with Practical Examples
Hexdump is a very useful Linux command for developers and application debuggers. It has the ability to dump file contents into many formats like hexadecimal, octal, ASCII and decimal. This command takes a file, or any standard input, as input [...]
How to Kill a Process from Linux Terminal
Everything running in the Linux operating system is considered as a process. When a user executes a program or the Linux OS runs a system service itself, a new process will be created. Usually, the processes will be terminated when [...]
How to Install perf Tool on CentOS and Ubuntu
Perf is a performance counter for Linux. With it you can know many secrets of the running linux system. For example why L2 cache misses are happening. Why your disk is showing activity, which code paths are making the stalls [...]
Unix Z Commands – Zcat, Zless, Zgrep, Zegrep and Zdiff Examples
In this article let us review how to perform normal file operation on a compressed files using the powerful Linux Z commands.Some of these z commands uncompressed the file temporarily in the /tmp directory to perform the specified operation. Some [...]
How to Track Progress % of Commands (cp,dd,tar) in CentOS/Fedora
When you copy a large file in terminal with simple cp command without flags, you might sometimes wonder whether it is really copying or the process got blocked somehow and it will actually never finish. The output is non existent [...]
Run Command Parallel on Multiple Hosts using PDSH Tool
PDSH is a very smart little tool that enables you to issue the same command on multiple hosts at once, and see the output. It is a high-performance and parallel remote shell utility. It can run multiple remote commands in parallel and [...]
How to Use SSH Command in Linux
SSH is a popular, powerful, software-based approach to network security. It is used for logging into a remote machine and for executing commands on a remote machine. Whenever data is sent by a computer to the network, ssh will automatically encrypt [...]