Linux Command

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Linux command: kill -9 / scp / telnet / ps

top

The easiest way to find out what processes are running on your server is to run the top command

ps

  • This output shows all of the processes associated with the current user and terminal session. This makes sense because we are only running bash and ps with this terminal currently.

  • To get a more complete picture of the processes on this system, we can run the following:

ps aux

kill

  • The most common way of passing signals to a program is with the kill command.
As you might expect, the default functionality of this utility is to attempt to kill a process:

kill PID_of_target_process

This sends the TERM signal to the process. The TERM signal tells the process to please terminate. This allows the program to perform clean-up operations and exit smoothly.

scp

  • scp stands for secure cp (copy), which means you can copy files across ssh connection

  • Copy one single local file to a remote destination

scp /path/to/source-file user@host:/path/to/destination-folder/

telnet

The telnet command is used for interactive communication with another host using the TELNET protocol. It begins in command mode, where it prints a telnet command prompt ("telnet>").

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