This category covers topics including various linux command line utilities and its uses.

Manage Linux Group Using gpasswd Command

Linux tail command

The gpasswd command (As defined in the man page) is used to administer /etc/group, and /etc/gshadow. Every group can have administrators, members and a password. Command Options -a, --add user Add the user to the named group. -d, --delete user [...]

Bobbin Zachariah 9:00 am

Detailed Understanding Of Linux Inodes With Example

Everything is a file, Linux and other Unix-like Operating systems maintain a consistency by treating everything as a file (even the hardware devices). The keyboard, mouse, printers, monitor, hard disk, processes, even the directories are treated as files in Linux. [...]

Bobbin Zachariah 9:21 am

How to Limit Process at User Level on Linux

Ulimit  - as the name signifies, its the user resource limits defined by users for their respective processes, it provides control over the resources available to the shell and to processes started by it, on systems that allow such control. [...]

Bobbin Zachariah 12:33 pm

Fdisk Commands - Manage Partitions in Linux

On Linux distributions, fdisk is the best tool to manage disk partitions. fdisk is a text based utility. Using fdisk you can create a new partition, delete an existing partition, or change existing partition. Using fdisk you are allowed to [...]

Bobbin Zachariah 4:32 pm

Commands To Understand Page Faults Stats In Linux

Virtual memory is the concept when we realize the memory more than physical memory. The big issue with virtual memory is page fault. The basic transfer unit is a fixed length block of data called page. When a process doesn't [...]

Raghu 7:37 pm

Learn Linux Nmap Command With Examples

NMAP, well, we here are talking of network mapping, this tool is a celebrity tool that also appeared in one of my favorite trilogy, yes, the Matrix series, in the movie , its used to scan the whole Matrix ecosystem [...]

Bobbin Zachariah 8:00 am

Linux Memory Analysis with Free and Pmap Command

When we talk of memory, then its the most misunderstood parameters of the whole system,especially, when we talk of Unix as a system, its memory workflow is again different from Linux and so Unix memory management is out of scope [...]

Bobbin Zachariah 1:31 am

4 Commands to Shutdown Linux from Terminal

How can you shut down your system successfully using a command? According to the manual page of shutdown command, shutting down a system means bringing the system down in a secure way. This article discusses the commands you can use [...]

Bobbin Zachariah 11:22 pm

How to Add User to Group on Linux

This article is about associating a user to a group but now the question is why a user joins a group and how we can do it. This can be associating a user to a new group or may be [...]

Raghu 12:20 am

Linux Command To Change Password For Root / User / Group

Passwords are the way of authenticating a user in Linux system. Linux uses MD5 as an algorithm for storing the password hashes. MD5 is a one way hashing algorithm which is very secure way of authentication. This article tells how [...]

Bobbin Zachariah 9:56 pm

Example How To Use Linux nohup Command

The signal in Linux or other UNIX like operating systems is a notification or message sent to a process to notify it that some event has occurred. Most of the commands executed by a user are run by his/her shell. [...]

Bobbin Zachariah 11:01 pm

Easy Linux Command To Change Runlevels

Runlevel can be defined as a part of Linux OS which determines the processes that need to be started at system startup. While booting a linux system, “init” is the first process that gets executed with PID 1, which then [...]

Bobbin Zachariah 10:17 pm