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v0.1.0 release
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README.md
74
README.md
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# hyprfreeze
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Simple bash script to "freeze" a game process in Hyprland, allowing you to resume it later.
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Useful to:
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- Pause games during unpausable cutscenes
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- Save system resources (CPU and GPU are free, the process is saved in RAM)
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Hyprfreeze is an utility to suspend a game process (and other programs) in Hyprland.
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(Also works for any other program; freezes the current active window)
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### Usage
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Make the script executable and add a bind in your Hyprland config:
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Useful to:
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- Pause single-player games that can't be paused (like Dark Souls)
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- Pause during cutscenes to read the subtitles or when something urgent comes up
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- Save system resources (excluding RAM) if you need them for another computer task, or if the game's pause menu uses too many
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## Installation
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### Arch Linux
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Coming soon<sup><sup>TM</sup></sup> in AUR.
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### Dependencies
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- hyprland (to get the pid of the active window with hyprctl)
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- jq (to parse json)
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- hyprprop (to get the pid of a window by selecting it with your mouse)
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### Manual
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Clone this repo and symlink the `hyprfreeze` script to a directory in your `PATH`:
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```bash
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$ git clone https://github.com/Zerodya/hyprfreeze.git Hyprfreeze
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$ ln -s $(pwd)/Hyprfreeze/hyprfreeze $HOME/.local/bin
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$ chmod +x Hyprfreeze/hyprfreeze
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```
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bind = $mainMod, PAUSE, exec, ~/scripts/hyprfreeze
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## Usage
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Add a bind in your Hyprland config to pause the current active window:
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```
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### Known issues
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- Mouse input doesn't work inside Xorg/XWayland windows while a Wine/Proton game is paused
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- Workaround: Run the game in gamescope
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- Suspending the computer while a game is paused and then resuming it later may cause the game to stutter heavily
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# ~/.config/hypr/hyprland.conf
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...
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# Toggle freeze on active window
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bind = $mainMod, PAUSE, exec, hyprfreeze -a
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```
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### Available flags
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```
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-h, --help show help message
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-a, --active pause/resume active window
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-p, --pid pause/resume by process id
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-n, --name pause/resume by process name/command
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-r, --prop pause/resume by clicking on window
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--info show information about the process
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--dry-run doesn't actually pause/resume a process, useful with --info
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```
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### Examples:
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```
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# Pause game by process name
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hyprfreeze -n eldenring.exe
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```
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```
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# Get info about a process by clicking on its window, without suspending it
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hyprfreeze -r --info --dry-run
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```
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## Disclaimer
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There is always the risk, although slim, that an application may crash.
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This is intrinsically related to modifying running processes and is not something that Hyprfreeze can prevent.
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Please make sure to **save your data** before using hyprfreeze.
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## Known issues
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- Pausing Wine/Proton games will cause mouse input to not work inside XWayland windows [#1](https://github.com/Zerodya/hyprfreeze/issues/2)
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- Workaround 1: Run the game in `gamescope`
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- Workaround 2: Pause the game from a terminal `hyprfreeze -n eldenring.exe`
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- Pausing Linux native games (e.g. Minecraft) may cause sound to stop in other apps [#2](https://github.com/Zerodya/hyprfreeze/issues/2)
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179
hyprfreeze
179
hyprfreeze
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#!/usr/bin/env bash
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PID=$(hyprctl activewindow | grep -i pid | awk -F "pid: " '{ print $2 }' | awk -F "," '{ print $1 }')
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PIDS=$(pstree $PID -npl | grep -oP '(?<=\()[0-9]+(?=\))')
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function printHelp() {
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cat <<EOF
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Usage: hyprfreeze (-a | -p [pid] | -n [name] | -r) [--info --dry-run]
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# Pause process if running
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if [[ "$(ps -o state= $PID)" == S ]]; then
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kill -STOP $PIDS
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exit 0
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fi
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Hyprfreeze is an utility to suspend a game process (and other programs) in Hyprland.
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# Resume process if stopped
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if [[ "$(ps -o state= $PID)" == T ]]; then
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kill -CONT $PIDS
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exit 0
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fi
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Options:
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-h, --help show help message
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-a, --active pause/resume active window
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-p, --pid pause/resume by process id
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-n, --name pause/resume by process name/command
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-r, --prop pause/resume by clicking on window
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--info show information about the process
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--dry-run doesn't actually pause/resume a process, useful with --info
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EOF
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}
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function hyprfreeze() {
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# Skip this function if --dry-run flag was provided
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if [[ $DRYRUN == "1" ]]; then return 0; fi
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# Get pids of process tree
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PIDS=$(pstree -p $PID | grep -oP '\(\K[^\)]+')
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# Pause or resume processes
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if [[ "$(ps -o state= $PID)" == T ]]; then
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kill -CONT $PIDS 2>/dev/null &&
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echo "Resumed $(ps -p $PID -o comm= 2>/dev/null) ($PID)" || exit 1
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else
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kill -STOP $PIDS 2>/dev/null &&
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echo "Stopped $(ps -p $PID -o comm= 2>/dev/null) ($PID)" || exit 1
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fi
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}
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function freezeActive() {
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PID=$(hyprctl activewindow -j | jq '.pid')
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# Prevent pausing itself
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script_pid=$$
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if echo "$(pstree -p $PID | grep -oP '\(\K[^\)]+')" | grep -q "$script_pid"; then
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echo "You are trying to suspend the hyprfreeze process."
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echo "This option is meant to be used via keybind to pause the active window, running it in terminal would suspend hyprfreeze itself."
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exit 1
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fi
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hyprfreeze
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}
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function freezePid() {
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# Check if process pid exists
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if ! ps -p $1 &>/dev/null; then
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echo "Process ID $1 not found"
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exit 1
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fi
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PID=$1
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hyprfreeze
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}
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function freezeName() {
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# Check if process name exists
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if ! pidof -x "$1" >/dev/null; then
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echo "Process name $1 not found"
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exit 1
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fi
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# Get last process if there are multiple
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PID=$(pidof $1 | awk '{print $NF}')
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hyprfreeze
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}
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function freezeProp() {
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PID=$(hyprprop | jq '.pid')
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hyprfreeze
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}
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function info() {
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echo -e "$(tput bold)Process tree:$(tput sgr0)"
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ps -p $PID 2>/dev/null && pstree -p $PID
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echo -e "\n$(tput bold)Process threads:$(tput sgr0)"
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ps -eLo pid,tid,comm | grep $PID 2>/dev/null
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echo -e "\n$(tput bold)Process ID$(tput sgr0) = $PID \
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\n$(tput bold)Process name$(tput sgr0) = $(ps -p $PID -o comm= 2>/dev/null) \
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\n$(tput bold)Process state$(tput sgr0) = $(ps -o state= -p $PID 2>/dev/null)"
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}
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function args() {
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# Check if no options were passed
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if [ -z "$1" ]; then
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printHelp
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exit 1
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fi
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# Track valid flags
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local valid_flag_count=0
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# Parse options
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local options="hap:n:r"
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local long_options="help,active,pid:,name:,prop,info,dry-run"
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local parsed_args=$(getopt -o $options --long $long_options -n "$(basename "$0")" -- "$@")
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eval set -- "$parsed_args"
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while true; do
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case $1 in
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-h|--help)
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printHelp
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exit 0
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;;
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-a|--active)
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((valid_flag_count++))
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FLAG_ACTIVE=true
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;;
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-p|--pid)
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((valid_flag_count++))
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shift;
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FLAG_PID="$1"
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;;
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-n|--name)
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((valid_flag_count++))
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shift;
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NAME_FLAG="$1"
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;;
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-r|--prop)
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((valid_flag_count++))
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FLAG_PROP=true
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;;
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--info)
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INFO=1
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;;
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--dry-run)
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DRYRUN=1
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;;
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--)
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shift; # Skip -- argument
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COMMAND=${@:2}
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break;;
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*)
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exit 1
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;;
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esac
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shift
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done
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# Check if more than one valid flag is provided, or if none was provided
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if [ $valid_flag_count -ne 1 ]; then
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printHelp
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exit 1
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fi
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}
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function main() {
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# Handle the chosen valid flag
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if [ "$FLAG_ACTIVE" = true ]; then freezeActive;
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elif [ -n "$FLAG_PID" ]; then freezePid "$FLAG_PID";
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elif [ -n "$NAME_FLAG" ]; then freezeName "$NAME_FLAG";
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elif [ "$FLAG_PROP" = true ]; then freezeProp;
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fi
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# Run info function after PID is obtained
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if [ $INFO -eq 1 ]; then info; fi
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}
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INFO=0
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DRYRUN=0
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args "$@"
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main
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