What should Linux system administrator know?

LPIC-1: Linux Administrator The professional should have a basic knowledge of Linux, GNU, and UNIX command. They must be capable of installing Linux workstations, monitoring access permissions, and understanding basic system architecture.

What is Shell in system administration?

A shell is simply a user interface that allows an administrator (or user) to issue commands to the operating system. If a Linux system administrator were an airlines pilot, using the shell would be similar to taking the plane off auto-pilot and grabbing the manual controls for more maneuverable flight.

What skills are needed for system administrator?

Top 10 System Administrator Skills

• Problem-Solving and Administration. Network admins have two main jobs: Solving problems, and anticipating problems before they happen.
• Networking.
• Cloud.
• Automation and Scripting.
• Security and Monitoring.
• Account Access Management.
• IoT/Mobile Device Management.
• Scripting Languages.

What are the advantages of shell script in Unix?

What are the advantages and disadvantages of shell scripting?

• To automate the frequently performed operations.
• To run sequence of commands as a single command.
• Easy to use.
• Portable (It can be executed in any Unix-like operating systems without any modifications)

What are some examples of shell scripts in Linux?

In fact, pretty much any command line Linux utility can be scripted in your shell. A great example of using a shell would be a quick script to check a list of hosts for DNS resolution.

What are the most useful Linux commands for system administrators?

30 Useful Linux Commands for System Administrators. 1 1. Uptime Command. In Linux uptime command shows since how long your system is running and the number of users are currently logged in and also 2 2. W Command. 3 3. Users Command. 4 4. Who Command. 5 5. Whoami Command.

What is Bash scripting in CentOS?

BASH scripting is a great method of quickly creating powerful scripts for everything from automating administration tasks to creating useful tools. Becoming an expert level BASH script developer takes time and practice. Hence, use BASH scripts whenever possible, it is a great tool to have in your CentOS Administration toolbox.

What is the use of SSH command in Linux?

SSH Command (Secure Shell) SSH command is used to login into remote host. For example the below ssh command will connect to remote host ( 192.168.50.2) using user as narad. To check the version of ssh use option -V (uppercase) shows version of ssh.