Linux is a UNIX-based open source operating system that was originally developed for the Intel compatible computers. It is a 32 bit open source operating system that runs on multiple hardware platforms ranging from PDA to main frames. There are many versions of Linux including Red Hat, Debian, Mandrake, Ubuntu and SUSE. Linux server administration includes the troubleshooting, backing up files, installations, security, logging, performance monitoring and analysis.
The major benefits of the Linux include configurability, open source, scalability, convenience and security. The security model is based on the UNIX security, which is known as a robust and of proven quality. A Linux based operating system possesses all the common features including networking, file system, printing, Send mail, text editor, entertainment, diagnostic utilities, security features, DNS, web server and many others.
Linux also supports the full implementations of the TCP/IP protocols. Many of the networking and other services are enabled in most of the flavors of Linux. It is the responsibility of the network administrators to keep the system running in a satisfactory manner. This article is intended to provide the useful commands for the Linux system administrators and the IT professionals to administer the Linux operating system.
Commands
Uptime
Clear Pwd CD Mkdir Adduser Chdir DC DF Echo Eject Free Info In Install Mount Passwd Quota RM Umount Users Printf Man Locate CMP Chroot Cal Arp Netstat Ping Sync Kill Wait Route |
Description
Prints the system uptime
Clears the terminal screen Print working directory Change directories Make directories Add a new user Change working directory Desk Calculator Displays free disk space Displays message on screen Eject CD-ROM Display Memory Usage Help Info Make links between the files Copy files Mount a file system Modify a user password Display disk usage Remove files Unmount a device Displays logged in users. Format and print data Help manual Find files To compare two files Change root directory Displays a calendar Checks Ethernet Connectivity Displays the summary of the network Send test packets and check the network Completes pending input/output operations. Terminate running jobs Wait for a background job to finish List the routing table of the server |