Learn about the ability to send messages to user terminals.
- [Instructor] Hi, and welcome…to the next video of the last section.…Sending Messages to User Terminals…In the previous video, we've learned about killing processes…and send or respond to signals.…A system administrator may need to send messages…to the terminal of every user or a specified user…on all machines over a network.…This video is a guide on how to perform this task.…Wall is a command that is used to write…messages on the terminals of all logged in users.…
It can used to convey messages to all logged in users…on a server or multiple access machines.…Sending messages to all users…may not be useful at all times.…Terminals are treated as devices in a Linux system…and hence these open terminals will have…a corresponding device node file…at slash dev slash P-T-S.…Writing data to a specific device…will display messages on the corresponding terminal.…In order to broadcast a message…to all users and all logged in terminals, use…The message outline will show who sent the message,…which user and which host.…
It is noteworthy that the message gets displayed…
Released
7/17/2017Note: This course was created by Packt Publishing. We are pleased to host this training in our library.
- Printing in the terminal
- Performing math in the Linux shell
- Getting and setting dates
- Working with functions and arguments
- Reading output
- Making comparisons
- Concatenating text
- Finding, editing, generating, and deleting files
- Running parallel processes
- Using regular expressions
- Downloading webpages
- Parsing data from a website
- Finding broken links
- Backing up and archiving
- Transferring files and data through the network
- Monitoring your Linux system
- Gathering data for system administration
Skill Level Intermediate
Duration
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Video: Sending messages to user terminals