Server Management

CPU Cores

nproc --all

Disk Space

df -h

Reboot

sudo shutdown -r now

Halt

sudo shutdown -h now

Package Management

Updating packages from sources

sudo apt update

Upgrading what is installed

sudo apt upgrade

Packages

Direct from deb file

sudo dpkg install -i <file.deb>

If you get complaints about packages missing just do:

sudo apt --fix-broken install

Or you can remove it

Install helpers from package repos

These are both very similar. apt seems more feature rich and can do stuff like apt search, apt show, apt list option, apt edit-sources to give more control over the packages.

apt-get is basically a simplified interface to dkpg for packages from your sources.

apt install <package>

apt-get intall <package>

Uninstall

dpkg
dpkg -r <package>

Or to delete config too:

dpkg -P <package>
apt and apt-get

Same remove command for both here:

sudo apt remove <what you installed>
sudo apt-get remove <what you installed>

SCP

Copy from Local to Remote

scp file.txt [email protected]:/remote/directory

Copy From Remote to Local

scp [email protected]:/remote/file.txt /local/directory

SMB Share

This was a nice writeup of parts of what is below.

Dependency

Install cifs which will mount the share:

sudo apt-get install cifs-utils

If you do not have cifs installed you will get a “No route to host” error.

Create the directory you want the share to be mounted to:

sudo mkdir /mnt/nas01-data

If required make a .credentials file w/ username and password and sudo chmod 600 .credentials

Mount

Single Instance

sudo mount -v -t cifs -o credentials=/home/thaynes/.credentials,uid=1000,gid=1000 //nas01/Data /mnt/nas01-data

Sucess will show this because we included -v:

mount.cifs kernel mount options: ip=192.168.0.10,unc=\\nas01\Data,user=thaynes,pass=********

Then you can see what you mounted via cd /mnt/nas01-data.

On Startup

For mounting on startup we need to edit fstab via sudo nano /etc/fstab/. The example above may be added via:

//nas01/Data /mnt/nas01-data cifs credentials=/home/thaynes/.credentials,uid=1000,gid=1000 0 0

Reboot to verify the mount is recreated on startup or umount anything previously mounted and run sudo mount -a.

Umount

Unmount but without the n because I guess that makes it too long to bare:

sudo umount /mnt/nas01-data

There is a -f option but I have not needed to use it.

vi

Thanks to bashing into containers I now only have vi as an editor. This doc seems pretty good though.