For example, if you’re sending data from Host A to Host B, as shown in Figure 9-1, your bytes leave the application layer on Host A and travel through the transport and network layers on Host A; then they go down to the physical medium, across the medium, and up again through the...
A Linux shell contains two types of commands: internal and external. Internalcommands are known as the built-in commands. They are part of the shell. The shell's manual pages include information about them. Linux does not provide separate manual pages for them. Externalcommands are part of sof...
Why Unix commands? Isn’t this a book about how Linux works? It is, of course, but Linux is a Unix flavor at heart. You’ll see the word Unix in this chapter more than Linux because you can take what you learn straight over to Solaris, BSD, and other Unix-flavored systems. I’ve...
select varsinlistdocommandsdone dialog Dialog is anapplicationused inshell scriptswhich displays textuser interfacewidgets. It uses the curses or ncurses library. The latter provides users with the ability to use a mouse, e.g., in anxterm. https://en.wikipedia.org/wiki/Dialog_(software) https...
How to Use the duf Command in Linux The duf utility is nothing but an enhancement of what traditional du anddf commandsdo to check used and free space in a structured and eye-pleasing way. And this is how it shows utilized disk space by default: ...
For example, asking for the location of thereadandmancommands only outputs the location for themancommand executable file, asreadis a bash shell command. which read man Conclusion This tutorial showed how to use thewhichcommand inLinuxto find the path to a command's executable binary. See and...
Disabling transparent hugepages (THP) on Red Hat Enterprise Linux 6 is not taking effect Disable Transparent Huge Pages(THP) persistently not working on RHEL7 To disable THP at run time Run the following commands to disable THP on-the-fly: ...
Use the command:qto exit Vim and return to the shell environment. You can also combine the two commands to make:wqto write and then quit. Type:q!if you want to quit without saving changes. In Linux or macOS, type thelscommand to list directory contents. In Windows, typedirto see the...
commands on a remote machine. It is intended to provide secure encrypted communications between two untrusted hosts over an insecure network. X11 connections, arbitrary TCP ports and UNIX-domain sockets can also be forwarded over the secure channel. ...
Most Common Network Port Numbers for Linux 13 Linux Network Configuration and Troubleshooting Commands Fping – A High-Performance Ping Tool for Linux Ping Command Examples in Linux In this article, we will explain12practicalping commandexamples for testing the reachability of a host on a network. ...