Category Archives: Operating Systems

Pertaining to a particular operating system, such as: Windows, Linux, Android etc.

How to start MySQL on Mac if it doesn’t start on bootup

Open MySQL on Mac if it fails to start during boot

Simple terminal command:

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Linux – User Commands (finding users registered in the system)

Find all users and services registered in the system:

cat /etc/passwd

Find all users registered in the system:

cat /etc/passwd | grep “/home”

To add a user to a group:

usermod -G<group> <user>

To delete a user and their home directory: (Users can have a “home” directory)

userdel -r <user>

Things i came across setting up VPS (servers) on linux.  In the midst of creating a domain i created users and webmin failed on me, and when i fixed the issue webmin failed on me again saying this user was already existed on the unix system.  Please feel free to comment.

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Linux commands – Groups

Find the groups the current user is in:

groups

You can also find groups other users are in:

groups root

groups <user>

how to find all users of a group:


egrep "^groupname" /etc/group

Windows opens search instead of drive or folder

Why is windows opening a search box instead of my drives in my computer?  Or why is windows opening searches when i double click folders.  Easy fix:

Open Registry Editor:  (Start menu – Run: regedit.exe)

In registry editor browse the tree on the left into: HKEY_CLASSES_ROOT /  (Directory / Drive) / Shell

Change Default to none

All Done