Command line file management To manage files, you need to be able to create, remove, copy, and move them. You also need to organize them logically into directories, which you also need to be able to create, remove, copy, and move.
Constructiong Pipelines A pipeline is a sequence of one or more commands separated by the pipe character (|). A pipe …
Command-Line Expansions The Bash shell has multiple ways of expanding a command line including pattern matching, home …
Standard Input, Standard Output and Standard Error A running program, or process, needs to read input from somewhere and …
The Problem You attempt to alter a user’s password to a previously used one and get the following error when …
Introducing GNU info Man pages have a format useful as a command reference, but less useful as general documentation. …
Introducing the Man Command One source of documentation that is generally available on the local system are system …
The file system hierarchy All files on a Linux system are stored on file systems, which are organized into a single …
Logging in Linux users and administrators often need to get shell access to a remote system by connecting to it over the …
This post describes how to change network device settings, such as speed, duplex, and auto-negotiation in Linux with …
Linux is a critical technology for IT professionals to understand. Linux is in widespread use, and if you use the …