Heather Huhman

Lindsey Pollak is a “next generation career expert.” Her blog benefits all career professionals, especially recent graduates.Heather Huhman’s blog is helpful for all job seekers, but particularly those looking into internships.If you are a job seeker looking for a career change, this would be the blog to visit.This blogs allows you to read up on career advice articles and utilize SimplyHired.com’s job search engine.You can also check out our team’s blog at blog.resunate.com, for career and resume advice to job seekers.

Careerbright Blog

Covers articles on job search, social media trends, personal branding, developing and improving your online presence, interviewing, career management, decision making, marketing plan, networking and more. Hannah Morgan, aka, Career Sherpa, a nationally recognized author and speaker and job search strategist helps people understand what actions they need to take to find a job faster.

Heather Huhman

Covers articles on job search, social media trends, personal branding, developing and improving your online presence, interviewing, career management, decision making, marketing plan, networking and more. Hannah Morgan, aka, Career Sherpa, a nationally recognized author and speaker and job search strategist helps people understand what actions they need to take to find a job faster.

How To Create File In Linux

if you want to create a file in linux through the cat command 

then you can type the command 
cat > filename 
then type the contain 
then press ctrl + z buttom 

What is Linux Operating system

Linux is an open-source operating system based on Unix. It was created by Linus Torvalds in 1991, and its source code is freely available for anyone to view, modify, and distribute. The core component of Linux is the Linux kernel, which manages the hardware resources of the computer.

Unlike proprietary operating systems like Windows or macOS, Linux is highly customizable, and it’s used in a wide range of devices, from personal computers to servers, smartphones, and even embedded systems. It's known for being secure, stable, and efficient.

A typical Linux system also includes a set of software tools and utilities, including a user interface (most commonly a desktop environment like GNOME or KDE), system libraries, and command-line utilities. Various distributions (or "distros") of Linux, such as Ubuntu, Fedora, and Debian, come with different configurations and software packages, making it easy for users to choose one based on their needs.

what is operating system

An operating system (OS) is software that acts as an intermediary between computer hardware and the computer user. It manages and controls the hardware and software resources of a computer, enabling applications to run and users to interact with the system. Essentially, the OS provides a user-friendly interface and ensures that the hardware and software can work together smoothly.

Key functions of an operating system include:

1. Managing hardware resources: The OS controls and allocates resources like the CPU, memory (RAM), storage devices, and input/output devices (like a keyboard and monitor).

2. Running programs: It allows multiple programs to run on the computer, providing a platform for software to execute.

3. Managing files: The OS helps in organizing, storing, and retrieving files and directories on storage devices like hard drives or SSDs.

4. User interface: It provides a way for users to interact with the computer, either through a graphical user interface (GUI), like Windows or macOS, or through a command-line interface (CLI), like in Linux.

5. Security and access control: The OS ensures that only authorized users can access certain resources and maintains security protocols to protect data and system integrity.

Common examples of operating systems include:

• Windows (by Microsoft)
• macOS (by Apple)
• Linux (open-source, available in various distributions)
• Android (used in smartphones and tablets)
• iOS (used in Apple mobile devices)

What is shell in linux

a shell is a command-line interface (CLI) that allows users to interact with the operating system by typing commands. It acts as an intermediary between the user and the kernel, enabling the user to execute programs, manipulate files, and control system functions.

There are different types of shells in Linux, with Bash (Bourne Again Shell) being the most common. Other examples include Zsh, Fish, Tcsh, and Sh. The shell interprets the commands you type, runs them, and then displays the output.

In short, it's like a "translator" between you and the operating system, converting your commands into actions.

Linux Directory and function

In Linux, a directory is essentially a container used to organize files and other directories. It can hold various files, subdirectories, and symbolic links to other files or directories. Here are the key details and concepts about Linux directories:
1. Basic Structure
The root directory is represented by / and is the starting point of the filesystem.
All other directories branch off from / or the root directory.
The full path to a file or directory begins from the root directory.
2. Common Linux Directories:
/: The root directory, contains all system files and directories.
/bin: Contains essential binary executables (programs) used by the system and users.
/etc: Contains system configuration files.
/home: The directory that holds user-specific files and subdirectories. Each user typically has their own directory here (e.g., /home/username).
/var: Contains variable data files like logs, spool files, and temporary files.
/usr: Contains user-related programs and data, including libraries and documentation.
/tmp: A temporary directory where files can be stored temporarily by programs or processes.
/lib: Contains shared library files needed by system programs.
3. Directory Permissions
Directories, like files, have permissions that control who can access or modify the contents. These permissions are:
r (read): List the contents of the directory.
w (write): Add, delete, or rename files within the directory.
x (execute): Traverse into the directory, allowing you to access files or subdirectories inside.
You can view directory permissions using ls -l command, where directories are indicated with a d at the beginning of the line (e.g., drwxr-xr-x).
4. Creating and Navigating Directories
Creating a directory: You can use mkdir directory_name to create a new directory.
Navigating directories: You use the cd command to change into a directory, e.g., cd /home/username.
Listing directory contents: You can list the contents of a directory using ls (add -l for detailed information, and -a to show hidden files).
5. Relative vs. Absolute Paths
Absolute path: The full path to a file or directory starting from the root (e.g., /home/username/docs).
Relative path: The path relative to the current working directory (e.g., ../docs).
6. Special Directories
.: Represents the current directory.
..: Represents the parent directory of the current directory.
7. Symbolic and Hard Links
Symbolic link (symlink): A special type of file that points to another file or directory (e.g., ln -s /path/to/target /path/to/link).
Hard link: Creates another reference to the same inode (data on disk) but doesn't point to a specific path.