By Sander van Vugt
This is Linux for these folks who don’t brain typing. All Linux clients and directors are likely to just like the flexibility and velocity of Linux management from the command line in byte–sized chunks, rather than relatively typical graphical person interfaces. Beginning the Linux Command Line is demonstrated opposed to all the most vital Linux distributions, and follows a task–oriented procedure that is distribution agnostic. Now this moment variation of Beginning the Linux Command Line updates to the very most up-to-date types of the Linux working process, together with the recent Btrfs dossier method and its administration, and systemd boot strategy and firewall administration with firewalld!
- Updated to the most recent types of Linux
- Work with records and directories, together with Btrfs!
- Administer clients and safeguard, and install firewalld
- Understand how Linux is prepared, to imagine Linux!
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Extra resources for Beginning the Linux Command Line
I wouldn’t recommend replacing your normal mail client by mail, but if you want to send a message to an Internet or local user, or if you want to read system mail, the mail command offers an excellent solution to do that. ■■Note You can use the mail command to send mail to Internet users, but this requires DNS to be set up properly on your Linux machine and an SMTP process running. Notice that Ubuntu does not install smtp by default, if you want to use mail on Ubuntu, install it first using apt-get install dhcpclient.
You may wonder now how to find out the differences between command arguments and arguments for options, but later in this chapter in the section “Getting Help,” you’ll see that it is fairly simple to differentiate the two argument types. Piping and Redirection To unleash the full power of Linux’s many commands, you can use piping and redirection. By piping, you can send the result of a command to another command, and by using redirection, you can determine where the command should send its results.
Note The /etc/hosts file contains a list of IP addresses and the matching host name. In a small network, you can use it as an alternative to using DNS for resolving host names. 12 Chapter 1 ■ Starting Linux Command-Line Administration Listing 1-4. You Can Use less As a Viewer to Read Text Files nuuk:/ # less /etc/hosts # # hosts This file describes a number of hostname-to-address # mappings for the TCP/IP subsystem. It is mostly # used at boot time, when no name servers are running. # On small systems, this file can be used instead of a # "named" name server.