Gist containing useful information and links to fixes and such.

.all-the-useful-tech-things.md

This Gist is a hodgepodge of documentation and information I don't want to lose in the future

.bashrc

# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples

# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) return;;
esac

# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth

# append to the history file, don't overwrite it
shopt -s histappend

# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000

# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize

# If set, the pattern "**" used in a pathname expansion context will
# match all files and zero or more directories and subdirectories.
#shopt -s globstar

# make less more friendly for non-text input files, see lesspipe(1)
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"

# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
    debian_chroot=$(cat /etc/debian_chroot)
fi

# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in
    xterm-color|*-256color) color_prompt=yes;;
esac

# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes

if [ -n "$force_color_prompt" ]; then
    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
	# We have color support; assume it's compliant with Ecma-48
	# (ISO/IEC-6429). (Lack of such support is extremely rare, and such
	# a case would tend to support setf rather than setaf.)
	color_prompt=yes
    else
	color_prompt=
    fi
fi

if [ "$color_prompt" = yes ]; then
    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi
unset color_prompt force_color_prompt

# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
    PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
    ;;
*)
    ;;
esac

# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
    alias ls='ls --color=auto'
    #alias dir='dir --color=auto'
    #alias vdir='vdir --color=auto'

    alias grep='grep --color=auto'
    alias fgrep='fgrep --color=auto'
    alias egrep='egrep --color=auto'
fi

# colored GCC warnings and errors
#export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'

# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'

# Add an "alert" alias for long running commands.  Use like so:
#   sleep 10; alert
alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'

# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.

if [ -f ~/.bash_aliases ]; then
    . ~/.bash_aliases
fi

# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if ! shopt -oq posix; then
  if [ -f /usr/share/bash-completion/bash_completion ]; then
    . /usr/share/bash-completion/bash_completion
  elif [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
  fi
fi

# changes default editor
export VISUAL=vim
export EDITOR="$VISUAL"

# updates make to use all cores
alias make='make -j $(nproc)'

.vimrc

# located ~/.vimrc
set number

nvme-grub-fix.md

https://askubuntu.com/questions/1238055/update-grub-not-working-no-medium-found

Add global_filter = [ "r|/dev/sda|", "r|/dev/sdb|" ] to the file /etc/lvm/lvm.conf :

 143         # Example
 144         # Accept every block device:
 145         # filter = [ "a|.*|" ]
 146         # Reject the cdrom drive:
 147         # filter = [ "r|/dev/cdrom|" ]
 148         # Work with just loopback devices, e.g. for testing:
 149         # filter = [ "a|loop|", "r|.*|" ]
 150         # Accept all loop devices and ide drives except hdc:
 151         # filter = [ "a|loop|", "r|/dev/hdc|", "a|/dev/ide|", "r|.*|" ]
 152         # Use anchors to be very specific:
 153         # filter = [ "a|^/dev/hda8$|", "r|.*|" ]
 154         # 
 155         # This configuration option has an automatic default value.
 156         # filter = [ "a|.*|" ]
 157         global_filter = [ "r|/dev/sda|", "r|/dev/sdb|" ]

Run sudo grub-update

remove-proxmox-subs.sh

#!/usr/bin/env bash

# source https://dannyda.com/2020/05/17/how-to-remove-you-do-not-have-a-valid-subscription-for-this-server-from-proxmox-virtual-environment-6-1-2-proxmox-ve-6-1-2-pve-6-1-2/
# change packages https://lunar.computer/posts/no-subscription-proxmox-60/
#Works on Proxmox VE 6.1-2,6.1-7,6.2-4,6.2-11,6.2-12 6.2-15 6.3-2
#(6.1 and up)

sed -i.backup "s/data.status !== 'Active'/false/g" /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js && systemctl restart pveproxy.service


#(6.2-11 and up)
sed -i.backup -z "s/res === null || res === undefined || \!res || res\n\t\t\t.false/false/g" /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js && systemctl restart pveproxy.service

#(16.2-12 and up)
sed -i.backup -z "s/res === null || res === undefined || \!res || res\n\t\t\t.data.status \!== 'Active'/false/g" /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js && systemctl restart pveproxy.service

#(6.2-15, 6.3-2 and up)
sed -i.backup -z "s/res === null || res === undefined || \!res || res\n\t\t\t.data.status.toLowerCase() \!== 'active'/false/g" /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js && systemctl restart pveproxy.service

useful-git-commands.md

How to revert back to a specific commit

git revert <COMMIT_HASH_ABOVE_DESIRED_REVERSION>

Retroactively edit git author and emails without changing timestamps

git filter-branch -f --env-filter "GIT_AUTHOR_NAME='NewName'; GIT_AUTHOR_EMAIL='[email protected]'; GIT_COMMITTER_NAME='NewName'; GIT_COMMITTER_EMAIL='[email protected]';" HEAD

Source

Alternative

git filter-branch --env-filter '
WRONG_EMAIL="[email protected]"
NEW_NAME="New Name Value"
NEW_EMAIL="[email protected]"

if [ "$GIT_COMMITTER_EMAIL" = "$WRONG_EMAIL" ]
then
    export GIT_COMMITTER_NAME="$NEW_NAME"
    export GIT_COMMITTER_EMAIL="$NEW_EMAIL"
fi
if [ "$GIT_AUTHOR_EMAIL" = "$WRONG_EMAIL" ]
then
    export GIT_AUTHOR_NAME="$NEW_NAME"
    export GIT_AUTHOR_EMAIL="$NEW_EMAIL"
fi
' --tag-name-filter cat -- --branches --tags

useful-linux.md

Migrate user with home directory

Migrating from peter to paul

Create a temporary user with root access, log out, log in with temp user, log into root, and run the following:

groupadd paul
usermod -d /home/paul -m -g paul -l paul peter

useful-shell-commands.md

sshuttle usage

sudo sshuttle -r $USER@$REMOTE -x $REMOTE 0/0