ssh
Connect to the server. ssh is a protocol that encrypts communication and connects to a remote server.
scp Exchange files with the server. Specify with the full path.
grep
$grep search regular expression filename
Print lines that contain specific characters.
It is often used with a pipe ("|"), which is very convenient.
$ ps aux | grep apache
When you hit
You can check if apache is running. You can check each process. (Refer to the reference article for details)
Reference article of "grep" https://webkaru.net/linux/commands-pipeline/
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