Mark McDow Computer-Tsu

In legacy GRUB the default is /boot/grub/menu.list
In GRUB2 the default is /boot/grub/grub.cfg
We mainly edit /etc/default/grub, which controls mainly the appearance of the GRUB menu.
We may also edit the scripts in /etc/grub.d/
These are the scripts that boot your operating systems, control external applications such as memtest & os_prober
theming./boot/grub/grub.cfg is built from /etc/default/grub & /etc/grub.d/*
update-grub
grub> prompt, that is the full GRUB 2 command shell.
GRUB2 started normally and loaded the normal.mod module other modules which are located in /boot/grub/[arch]/
If GRUB2 didn’t find grub.cfg file then, grub rescue> is prompted that means it couldn’t find normal.mod, so it probably couldn’t find any of the boot files.

Users are on the system are listed in an alphabetical order - cut /etc/passwrd -d":" -f1 | sort
User has shell access - cat /etc/passwd | cut -d":" -f4,5,6,7 | grep "^0" or count - cat /etc/passwd | cut -d":" -f4 | grep "^0" | wc -l
Export the Users' list to a file - cut /etc/passwd -d ":" -f1 > system_users.txt
Count the number of Users - cat ./system_users.txt | sort | wc –l
Compare - cat ./system_users.txt - cut /etc/passwd -d ":" -f1 > system_users002.txt && cat system_users002.txt | sort | wc -l
Diff - diff ./system_users.txt ./system_users002.txt
how many words begin with the letter a from the main user dictionary - egrep '^a.*$' /usr/share/dict/words | wc -l
tee to both view and write files and directories in /etc - ls -d /etc/a* | tee ./etc_report_a.txt
Kernel Info - lsb_release -a or uname -a or hostnamectl or cat /proc/os-release

You should not use the Open SSH client that comes with Git for Windows. Instead, Windows 10 has its own implementation of Open SSH that is integrated with the system. To achieve this:

Start the ssh-agent from Windows Services:

Type Services in the Start Menu or Win+R and then type services.msc to launch the Services window;
Find the OpenSSH Authentication Agent in the list and double click on it;
In the OpenSSH Authentication Agent Properties window that appears, choose Automatic from the Startup type: dropdown and click Start from Service status:. Make sure it now says Service status: Running.

Configure Git to use the Windows 10 implementation of OpenSSH by issuing the following command in Powershell:

git config --global core.sshCommand C:/Windows/System32/OpenSSH/ssh.exe

We did it! We broke gist.github.com ;) So head over to the new home! Thank you all!
2021.10.20: https://github.com/AveYo/MediaCreationTool.bat now open for interaction

Not just an Universal MediaCreationTool wrapper script with ingenious support for business editions,

A powerful yet simple windows 10 / 11 deployment automation tool as well!

discuss on MDL

to see which printer is availabe in this system , simply type

lpstat -p -d

Output: printer HP-LaserJet-1200 is idle. enabled since Thu 09 Aug 2018 01:29:05 PM +06 printer Zebra-Technologies-ZTC-GK420t is idle. enabled since Fri 24 Aug 2018 05:54:04 PM +06 printer ZTC-GK420t is idle. enabled since Fri 24 Aug 2018 05:54:04 PM +06 system default destination: Zebra-Technologies-ZTC-GK420t

SSH Cheat Sheet

This sheet goes along with this SSH YouTube tutorial

Login via SSH with password (LOCAL SERVER)

$ ssh [email protected]

Create folder, file, install Apache (Just messing around)

$ mkdir test

$ cd test

Postgres Cheatsheet

This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.

Setup

installation, Ubuntu

http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL

	# Removes Webroot SecureAnywhere by force
	# Run the script once, reboot, then run again

	# Webroot SecureAnywhere registry keys
	$RegKeys = @(
	"HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\WRUNINST",
	"HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\WRUNINST",
	"HKLM:\SOFTWARE\WOW6432Node\WRData",
	"HKLM:\SOFTWARE\WOW6432Node\WRCore",
	"HKLM:\SOFTWARE\WOW6432Node\WRMIDData",

	// insert your Spotify client id and secret here
	let clientId = "xxx"
	let clientSecret = "xxx"

	// use your spotify country iso code to optimize search results
	let spotifyCountry = "DE"

	// optional: the ip of your node-sonos-http-api and room name; use "sonos" as parameter in your widget settings to activate it
	let sonosUrl = "http://192.168.178.10:5005/Kitchen"

	@echo off& title RunAsTI - lean and mean snippet by AveYo, 2018-2022
	goto :nfo
	[FEATURES]
	- innovative HKCU load, no need for reg load / unload ping-pong; programs get the user profile
	- sets ownership privileges, high priority, and explorer support; get System if TI unavailable
	- accepts special characters in paths for which default run as administrator fails
	- adds Send to - RunAsTI right-click menu entry to launch files and folders as TI via explorer
	[USAGE]
	- First copy-paste RunAsTI snippet after .bat script content
	- Then call it anywhere to launch programs with arguments as TI