Configure bash
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3
.config/shell/README.md
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.config/shell/README.md
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# Shell-related Configuration
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This folder contains further files that are sourced by `bash`.
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.config/shell/aliases.sh
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.config/shell/aliases.sh
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# Shell aliases for bash
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_command_exists() {
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command -v "$1" 1>/dev/null 2>&1
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}
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# Re-run last command with sudo privileges
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alias ,,='sudo $(history -p !!)'
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# (Non-)obvious synonyms
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alias cls='clear'
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alias help='man'
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# Avoid bad mistakes and show what happens
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alias cp="cp --interactive --verbose"
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alias ln='ln --interactive --verbose'
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alias mv='mv --interactive --verbose'
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alias rm='rm -I --preserve-root --verbose'
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# Make working with files more convenient
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# Faster directory switching
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alias cd..='cd ..'
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alias ..='cd ..'
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alias ...='cd ../..'
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alias ....='cd ../../..'
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alias .....='cd ../../../..'
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# Convenient defaults
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alias mkdir='mkdir -p'
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alias md='mkdir'
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alias rmdir='rmdir --parents --verbose'
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alias rd='rmdir'
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# Convenient grepping
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alias grep='grep --color=auto --exclude-dir={.cache,\*.egg-info,.git,.nox,.tox,.venv}'
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alias egrep='egrep --color=auto --exclude-dir={.cache,\*.egg-info,.git,.nox,.tox,.venv}'
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alias fgrep='fgrep --color=auto --exclude-dir={.cache,*.egg-info,.git,.nox,.tox,.venv}'
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# Convenient searching
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alias fdir='find . -type d -name'
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alias ffile='find . -type f -name'
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# Convenient listings
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alias ls='ls --classify --color=auto --group-directories-first --human-readable --no-group --time-style=long-iso'
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alias la='ls --almost-all'
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alias lal='la -l'
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alias ll='ls -l'
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alias l.='ls --directory .*'
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alias ll.='l. -l'
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# More convenience with various other file-related utilities
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alias df='df --human-readable'
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alias du='du --human-readable'
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alias diff='diff --color=auto --unified'
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_command_exists colordiff && alias diff='colordiff --unified'
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alias free='free --human --total'
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alias less='less --chop-long-lines --ignore-case --LONG-PROMPT --no-init --status-column --quit-if-one-screen'
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alias more='less'
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alias tree='tree -C --dirsfirst'
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# Various one-line utilities
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alias datetime='date +"%Y-%m-%d %H:%M:%S %z (%Z)"'
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alias datetime-iso='date --iso-8601=seconds'
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alias dotfiles='git --git-dir=$HOME/.dotfiles/ --work-tree=$HOME'
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alias external-ip="curl https://icanhazip.com"
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alias external-ip-alt="curl https://ipinfo.io/ip\?token=cfd78a97e15ebf && echo"
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alias external-ip-extended-infos="curl https://ipinfo.io/json\?token=cfd78a97e15ebf && echo"
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alias speedtest="curl -s https://raw.githubusercontent.com/sivel/speedtest-cli/22210ca35228f0bbcef75a7c14587c4ecb875ab4/speedtest.py | python -"
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# Fix common typos
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_command_exists ifconfig && alias ipconfig='ifconfig'
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_command_exists R && alias r='R'
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# Use sane defaults
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_command_exists exa && alias exa='exa --group-directories-first --git --time-style=long-iso'
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_command_exists netstat && alias ports='netstat -tulanp'
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_command_exists screenfetch && alias screenfetch='screenfetch -n'
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alias uptime='uptime --pretty'
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alias wget='wget --continue'
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# Create shorter aliases for various utilities
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_command_exists batcat && alias bat='batcat'
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_command_exists fdfind && alias fd='fdfind'
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_command_exists neofetch && alias nf='neofetch'
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_command_exists ranger && alias rn='ranger'
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_command_exists screenfetch && alias sf='screenfetch'
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271
.config/shell/utils.sh
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.config/shell/utils.sh
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# This file initializes the shell and provides various utility functions
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_command_exists() {
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command -v "$1" 1>/dev/null 2>&1
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}
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# Configure the keyboard:
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# - make right alt and menu keys the compose key, e.g., for umlauts
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# - make caps lock a ctrl modifier and Esc key
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setxkbmap us -option 'compose:menu,compose:ralt,caps:ctrl_modifier'
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_command_exists xcape && xcape -e "Caps_Lock=Escape"
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# ==============================
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# Working with files and folders
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# ==============================
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# List the $PATH variable, one element per line
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# (if an argument is passed, grep for it)
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path() {
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if [ -n "$1" ]; then
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echo $PATH | perl -p -e 's/:/\n/g;' | grep -i "$1"
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else
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echo $PATH | perl -p -e 's/:/\n/g;'
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fi
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}
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# Show folders by size
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disk-usage() {
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if [ -n "$1" ]; then
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_dest="$1"
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else
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_dest=.
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fi
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\du --human-readable --max-depth=1 $_dest 2>/dev/null | sort --human-numeric-sort --reverse
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}
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# Search all files in a directory and its children
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lsgrep() {
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ls --almost-all --directory . ./**/* | uniq | grep --color=auto -i "$*"
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}
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# Make a directory and cd there
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mcd() {
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test -n "$1" || return
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mkdir -p "$1" && cd "$1" || return
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}
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# Extract any compressed archive or file
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extract() {
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if [ -f "$1" ] ; then
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case "$1" in
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*.tar.bz2) tar xjvf "$1" ;;
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*.tar.gz) tar xzvf "$1" ;;
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*.tar.xz) tar xvf "$1" ;;
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*.bz2) bzip2 -d "$1" ;;
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*.gz) gunzip "$1" ;;
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*.tar) tar xf "$1" ;;
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*.tbz2) tar xjf "$1" ;;
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*.tgz) tar xzf "$1" ;;
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*.zip) unzip "$1" ;;
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*.Z) uncompress "$1" ;;
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*.7z) 7z x "$1" ;;
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*) echo "'$1' cannot be extracted automatically" ;;
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esac
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else
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echo "'$1' is not a file"
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fi
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}
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mktar() { # out of a directory
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tar cvzf "${1%%/}.tar.gz" "${1%%/}/"
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}
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mkzip() { # out of a file or directory
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zip -r "${1%%/}.zip" "$1"
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}
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# =================================
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# Creating random login credentials
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# =================================
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genpw() {
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PARSED=$(getopt --quiet --options=acn: --longoptions=alphanum,clip,chars: -- "$@")
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eval set -- "$PARSED"
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SYMBOLS='--symbols'
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CHARS=30
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XCLIP=false
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while true; do
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case "$1" in
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-a|--alphanum)
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SYMBOLS=''
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shift
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;;
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-c|--clip)
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XCLIP=true
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shift
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;;
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-n|--chars)
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CHARS=$2
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shift 2
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;;
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--)
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shift
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break
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;;
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*)
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break
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;;
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esac
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done
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PW=$(pwgen --ambiguous --capitalize --numerals --secure $SYMBOLS --remove-chars="|/\\\"\`\'()[]{}<>^~@§$\#" $CHARS 1)
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if [[ $XCLIP == true ]]; then
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echo $PW | xclip -selection c
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else
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echo $PW
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fi
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}
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alias genpw-alphanum='pwgen --ambiguous --capitalize --numerals --secure 30 1'
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# Random email addresses that look like "normal" ones
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genemail() {
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PARSED=$(getopt --quiet --options=c --longoptions=clip -- "$@")
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eval set -- "$PARSED"
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XCLIP=false
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while true; do
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case "$1" in
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-c|--clip)
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XCLIP=true
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shift
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;;
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--)
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shift
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break
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;;
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*)
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break
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;;
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esac
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done
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FIRST=$(shuf -i 4-5 -n 1)
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LAST=$(shuf -i 8-10 -n 1)
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if _command_exists gpw; then
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USER="$(gpw 1 $FIRST).$(gpw 1 $LAST)@webartifex.biz"
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else
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# Fallback that looks a bit less "normal"
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USER="$(pwgen --no-capitalize --no-numerals --secure $FIRST 1).$(pwgen --no-capitalize --no-numerals --secure $LAST 1)@webartifex.biz"
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fi
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if [[ $XCLIP == true ]]; then
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echo $USER | xclip -selection c
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else
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echo $USER
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fi
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}
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# =============================
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# Automate the update machinery
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# =============================
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_update_apt() {
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_command_exists apt || return
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echo 'Updating apt packages'
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sudo apt update
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sudo apt upgrade
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sudo apt autoremove
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sudo apt autoclean
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}
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_update_dnf() {
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_command_exists dnf || return
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echo 'Updating dnf packages'
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sudo dnf upgrade --refresh
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sudo dnf autoremove
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sudo dnf clean all
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}
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_remove_old_snaps() {
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sudo snap list --all | awk "/disabled/{print $1, $3}" |
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while read snapname revision; do
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sudo snap remove "$snapname" --revision="$revision"
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done
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}
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# Update local git repositories (mostly ~/repos)
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_update_repositories() {
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echo 'Updating repositories'
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cwd=$(pwd)
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cd $REPOS
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for dir in */; do
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cd "$REPOS/$dir" && echo "Fetching $REPOS/$dir"
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git fetch --all --prune
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done
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_command_exists pass && echo "Fetching $HOME/.password-store" && pass git pull
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_update_dotfiles
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cd $cwd
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}
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# Update the ~/.dotfiles repository
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_update_dotfiles() {
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echo "Fetching $HOME/.dotfiles"
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# The `dotfiles` alias is defined in ~/.bashrc at the end of the
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# "Shell Utilities & Aliases" section and can NOT be used here
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git --git-dir=$HOME/.dotfiles/ --work-tree=$HOME stash --quiet
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git --git-dir=$HOME/.dotfiles/ --work-tree=$HOME fetch --all --prune
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git --git-dir=$HOME/.dotfiles/ --work-tree=$HOME pull --rebase --quiet
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git --git-dir=$HOME/.dotfiles/ --work-tree=$HOME stash pop # --quiet is ignored
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}
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update-machine() {
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sudo --validate || return
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_update_apt
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_update_dnf
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_command_exists flatpak && sudo flatpak update -y
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_command_exists snap && sudo snap refresh && _remove_old_snaps
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_update_repositories
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sudo --reset-timestamp
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}
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# =======================
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# Various other Utilities
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# =======================
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# List all internal IPs
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internal-ips() {
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if _command_exists ifconfig; then
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ifconfig | awk '/inet /{ gsub(/addr:/, ""); print $2 }'
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else
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echo 'ifconfig not installed'
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fi
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}
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# Obtain a weather report
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weather() {
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if [ -n "$1" ]; then
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curl "v1.wttr.in/$1"
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else
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curl 'v1.wttr.in'
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fi
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}
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