Flash system caches:
$ echo 1 > /proc/sys/vm/drop_caches
$ echo 2 > /proc/sys/vm/drop_caches
$ echo 3 > /proc/sys/vm/drop_caches

Running programs and system memory used:
$ top

Check the server space:

$ df -h

$ du -sh

List the server files:

$ ll

$ ls -la

SSH connects to the Linux server with the server key:

$ ssh -i /key/path/name.pem user@9.9.9.9

Copy file to the server:

$ scp -i /key/path/file/name user@9.9.9.9:/server/path

Copy server file to local path:

$ scp -i user@9.9.9.9:/server/path/file/name /Users/name/local/file/path/

 

 

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