GNU Linux/Useful Commands
File Conversion
Batch Convert Man Pages into HTML files
Requires the mandoc program to be installed.
mkdir html && for x in .; do mandoc -Thtml -O man=./html/%N.%S.html,toc $x > html/$x.html; done
Virtual Machines
I've found this to be more useful than guestmount (provided by the libguestfs-tools package for Ubuntu), because it does not require superuser privileges to execute, and is easy to unmount afterwards. Based on the answer provided on Super User: https://superuser.com/a/1548983.
mkdir -p ~/tmp/windows10-vm
nbdfuse ~/tmp/windows10-vm [ qemu-nbd path_to_disk_image ] &
fusermount -u ~/tmp/windows10-vm
NVIDIA
To workaround a bug where the frame rate drops for Mutter and other applications, when they are viewed on an external monitor, boost the memory clock speed with this command below. The two values after lmc are the minimum and maximum memory clock speeds in MHz.
sudo nvidia-smi -lmc 2000,6000
Making Changes to Windows Registry Hive Files
The Windows registry consists of keys and values, belonging to hives. These hives are stored under C:\Windows\system32\config
According to Microsoft's official documentation (https://learn.microsoft.com/en-us/windows/win32/sysinfo/registry-hives), these are the root keys and the hive file names which they correspond to:
| Registry hive | Supporting files |
|---|---|
| HKEY_CURRENT_CONFIG | System, System.alt, System.log, System.sav |
| HKEY_CURRENT_USER | Ntuser.dat, Ntuser.dat.log |
| HKEY_LOCAL_MACHINE\SAM | Sam, Sam.log, Sam.sav |
| HKEY_LOCAL_MACHINE\Security | Security, Security.log, Security.sav |
| HKEY_LOCAL_MACHINE\Software | Software, Software.log, Software.sav |
| HKEY_LOCAL_MACHINE\System | System, System.alt, System.log, System.sav |
| HKEY_USERS\.DEFAULT | Default, Default.log, Default.sav |
WARNING: Make a backup copy of the hive file before editing it.
I find it useful to browse through sub-keys and values with hivexsh <path to hive> , then export a key from the hive file (using the file for HKEY_LOCAL_MACHINE\Software for example):
hivexregedit --export ./SOFTWARE Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer > explorer-policies.reghivexregedit --merge ./SOFTWARE ./explorer-policies.reg
I've left out the conversion of the exported registry file from Windows UTF-16 to UTF-8, and back again to UTF-16 before the merge, as I've found through testing that this isn't needed (with hivex version 1.3.23).