Uploaded September 2021 | Updated September 2026, 2 weeks ago
As followup from the last video about setting up a virtual home lab to start your IT training, we'll continue in this video with preparing the host computer and installing a CentOS virtual machine in VirtualBox. I'm using a Mac as host.
https://itvraag.nl
#virtualbox #centos #virtualmachine
Previous video about setting up virtual lab: youtu.be/KkvjAjJfavA
CentOS: centos.org/download
VirtualBox: virtualbox.org/wiki/Downloads
As followup from the last video about setting up a virtual home lab to start your IT training, we'll continue in this video with preparing the host computer and installing a CentOS virtual machine in VirtualBox. I'm using a Mac as host.
https://itvraag.nl
#virtualbox #centos #virtualmachine
Previous video about setting up virtual lab: youtu.be/KkvjAjJfavA
CentOS: centos.org/download
VirtualBox: virtualbox.org/wiki/Downloads
![Bash #10 - Combining commands (skip waiting)
In this video well cover three ways to combine and chain commands together in the Linux terminal using semi-colon, logical AND or logical OR operators. This will help you save a lot of time and automate checks.
#bash #bashscripting #terminal #linux
https://itvraag.nl
Timestamp:
0:00 Intro
0:17 operators to chain commands
1:16 semi-colon
1:38 when to use semi-colon
1:56 logical AND
2:52 logical OR
3:46 combine operators
4:05 grouping commands
Related video:
APT package manager: https://youtu.be/ZKPs-rnG6E0
Windows 11 Terminal PRO tips: https://youtu.be/0NBYBOGalO4
oh-my-zsh: https://youtu.be/IMUuElcjMdo
MacOS terminal PRO tips: https://youtu.be/LcelO7XErdA
Bash #4 - variables: https://youtu.be/mOSnZ7zOF3g
Bash #3 - script files: https://youtu.be/ajpTOFyeDH4
Bash #2 - help, touch, echo & aliases: https://youtu.be/cyi6imc5ruY
Bash #1 - basic concepts: https://youtu.be/C-HwzPVLo1c
Used commands:
clear;ls -alt;pwd;uname -srmp;whoami
chmod +x script1
mkdir dir1 && cd dir1
sudo apt update && sudo apt upgrade -y
[ -x script3 ] || chmod +x script3
[ -x script1 ] && echo done
[ -x script1 ] || echo done
ls -lt; [ -x script1 ] && echo true || echo false
VAR=1; echo VAR: $VAR; { VAR=2; echo inside VAR: $VAR; }; echo outside VAR: $VAR
VAR=1; echo VAR: $VAR; ( VAR=2; echo inside VAR: $VAR; ); echo outside VAR: $VAR
[ -x script3 ] || ( echo first && echo second ) Bash #10 - Combining commands (skip waiting)](https://i.ytimg.com/vi/ixPZOoONsAs/mqdefault.jpg)









