brunoais · March 3, 2026 13:04 · Mar 25, 2022 · Jul 18, 2021 · Jul 5, 2021 · Jul 5, 2021
diff --git a/proton b/proton
@@ -164,5 +164,5 @@ export STEAM_COMPAT_DATA_PATH=$env_dir
 # Make sure the directory exists
 [ -d "$env_dir" ] || (mkdir -p "$env_dir" && echoerr "Proton directory created: $env_dir")
 
-"$client_dir/steamapps/common/$proton_version/proton" run "$*"
+"$client_dir/steamapps/common/$proton_version/proton" run "$@"
 
diff --git a/proton b/proton
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 # Execute Windows programs with Proton from Steams installation folder, without
 # starting Steam client.
@@ -35,18 +35,25 @@
 #   export PROTONVERSION="Proton 3.16"
 #   proton program.exe
 
-# Folder name of the Proton version found under "steamapps/common/".
-# proton_version="Proton - Experimental"
-# proton_version="Proton 3.16"
-proton_version="Proton - Experimental"
+# Folder name possibilities for the Proton version found under "steamapps/common/".
+possible_proton_versions=( "Proton - Experimental" "Proton 6.3" "Proton 5.0"  "Proton 3.16" )
 
 # Path to installation directory of Steam.
-# Alternate path: "$HOME/.steam/steam"
-client_dir="$HOME/.local/share/Steam"
+# Contains the possibilities on where to find steam
+possible_client_dirs=( "$HOME/.local/share/Steam" "$HOME/.steam/steam" "/var/.steam" "/var/steam" "/var/local/Steam" )
+
 
 # Default data folder for Proton/WINE environment.  Folder must exist.
-# If the environmental variable PROTONPREFIX is set, it will overwrite env_dir.
-env_dir=$HOME/proton
+# If the environmental variable PROTONPREFIX is set, it will overwrite the value set here.
+# If no directory is found, the last one is created and used
+alternative_env_dirs=( "$HOME/proton"  "$HOME/.proton" )
+
+# Proton logging.
+# Uncomment to activate logging for proton
+# export PROTON_LOG="+timestamp,+pid,+tid,+seh,+debugstr,+module" 
+# export PROTON_LOG_DIR="/dev/shm/proton"
+
+
 
 # Proton modes to run
 #   run = start target app
@@ -55,18 +62,107 @@ env_dir=$HOME/proton
 #   getnativepath = windows -> linux path
 mode=run
 
+echoerr() { echo "$@" 1>&2; }
+
+discover_proton_version () {
+
+	for possible_proton_version in "${possible_proton_versions[@]}"
+	do
+		for possible_client_dir in "${possible_client_dirs[@]}"
+		do
+			if [[ -f "$possible_client_dir/steamapps/common/$possible_proton_version/proton" ]]
+			then 
+				client_dir="${client_dir:-$possible_client_dir}"
+				proton_version="${proton_version:-$possible_proton_version}"
+				echoerr "discover_proton_version:" "$possible_client_dir/steamapps/common/${possible_proton_version}/proton"
+				return
+			fi
+
+		done
+	done
+
+}
+
+discover_env_dir () {
+	for alternative_env_dir in "${alternative_env_dirs[@]}"
+	do
+
+		if [[ -d "$alternative_env_dir" ]] 
+		then 
+			echoerr "alternative_env_dir:" "$alternative_env_dir"
+			env_dir="$alternative_env_dir"
+			return
+		fi
+
+	done
+
+	env_dir=${$alternative_env_dir[-1]}
+	echoerr "final fallback env dir:" "$env_dir"
+}
+
+client_dir=
+env_dir=
+proton_version=
+
+
+if [[ "$1" =~ ((.*?)/steamapps/common/([^/]+)/) ]] 
+then
+	
+	app_dir="${BASH_REMATCH[1]}"
+	client_dir="${BASH_REMATCH[2]}"
+	app_dir_name="${BASH_REMATCH[3]}"
+
+	# get the appid
+	app_id=$(grep '"appid"' "$(grep -l "$app_dir_name" "$client_dir/steamapps/"*.acf)" |
+			sed -Ee 's/.*?"([0-9]+)".*/\1/g')
+	
+
+	env_dir="$client_dir/steamapps/compatdata/$app_id/"
+
+	echo "$env_dir"
+
+	if [[ ! -d "$env_dir" ]]
+	then
+		env_dir="${alternative_env_dirs[0]}"
+		echoerr "Env dir final fallback"
+	fi
+
+
+	echoerr "Env dir as:" " $env_dir" 
+else
+	discover_proton_version
+
+fi
+
+
 # ENVIRONMENTAL VARIABLES
 if [ -n "${PROTONPREFIX+1}" ]
 then
     env_dir=$PROTONPREFIX
+elif [ -z $env_dir ]
+then
+	discover_env_dir
 fi
 
 if [ -n "${PROTONVERSION+1}" ]
 then
     proton_version=$PROTONVERSION
+elif [ -z "$proton_version" ] || [ -z "$client_dir" ] 
+then
+	discover_proton_version
 fi
 
+
 # EXECUTE
 export STEAM_COMPAT_CLIENT_INSTALL_PATH=$client_dir
 export STEAM_COMPAT_DATA_PATH=$env_dir
-"$client_dir/steamapps/common/$proton_version/proton" $mode $*
+
+
+[[ ! -z "$PROTON_LOG" ]] && echo "$client_dir/steamapps/common/$proton_version/proton" $mode $*
+[[ ! -z "$PROTON_LOG_DIR" ]] && mkdir -p "$PROTON_LOG_DIR"
+
+# Make sure the directory exists
+[ -d "$env_dir" ] || (mkdir -p "$env_dir" && echoerr "Proton directory created: $env_dir")
+
+"$client_dir/steamapps/common/$proton_version/proton" run "$*"
+
diff --git a/proton b/proton
@@ -1,34 +1,51 @@
 #!/bin/sh
 
-# Run Windows programs through Proton from Steams installation, without
-# starting the main Steam client.
-#
-# Create a directory for the Proton environment to run in.  As an example make
-# a folder "proton" in your home and point to it in the "env_dir" variable.
-# Then look in the "steamapps/common/" folder in your Steam installation for
-# available Proton versions to use.  Pick one and point the variable
-# "proton_version" to that folder name.  Obviously you have to download the
-# Proton version you want to use first from Steam client itself.  Then it
-# should be found in this directory.  Optionally install this script in a
-# directory that is in your $PATH, so you can run it easily from any place.
+# Execute Windows programs with Proton from Steams installation folder, without
+# starting Steam client.
+#
+# 1. Create a directory for Proton environment to run in.  As an example make a
+#    folder "proton" in your home directory.  This folder must exist in order
+#    to make Proton work.
+#
+# 2. Point the variable "env_dir" in this script to that folder or...
+#
+# 3. ... alternatively set the environmenal variable "$PROTONPREFIX" to this
+#    folder before running the script.  It works similar to the "$WINEPREFIX"
+#    from WINE and will have higher priority over "env_dir".
+#
+# 4. Look in your Steam installation folder at "steamapps/common/" folder for
+#    available Proton versions.  Pick one and point the script variable
+#    "proton_version" to this that folder name, in example "Proton 3.16".
+#    Note: You have to download a Proton version from Steam first, if none is
+#    there yet.
+#
+# 5. Or alternatively set the environmental variable "$PROTONVERSION" to that
+#    folder name of Proton version before running the script.  It has higher
+#    priority over script variable "proton_version".
+#
+# 6. Optionally install/copy this script in a directory that is in your $PATH,
+#    so you can run it easily from any place.  Or set the default interpreter
+#    for .exe files to this script.
 #
 # Usage:
 #   proton program.exe
+#
+# or:
+#   export PROTONPREFIX="$HOME/proton_316"
+#   export PROTONVERSION="Proton 3.16"
+#   proton program.exe
 
 # Folder name of the Proton version found under "steamapps/common/".
 # proton_version="Proton - Experimental"
 # proton_version="Proton 3.16"
 proton_version="Proton - Experimental"
 
-# Old method:
-# Path to the directory where the actual Proton from Steam is installed in.
-# install_dir="$HOME/.steam/steam/steamapps/common/Proton - Experimental"
-
 # Path to installation directory of Steam.
 # Alternate path: "$HOME/.steam/steam"
 client_dir="$HOME/.local/share/Steam"
 
-# Data folder for Proton/WINE environment.  Folder must exist.
+# Default data folder for Proton/WINE environment.  Folder must exist.
+# If the environmental variable PROTONPREFIX is set, it will overwrite env_dir.
 env_dir=$HOME/proton
 
 # Proton modes to run
@@ -38,10 +55,18 @@ env_dir=$HOME/proton
 #   getnativepath = windows -> linux path
 mode=run
 
+# ENVIRONMENTAL VARIABLES
+if [ -n "${PROTONPREFIX+1}" ]
+then
+    env_dir=$PROTONPREFIX
+fi
+
+if [ -n "${PROTONVERSION+1}" ]
+then
+    proton_version=$PROTONVERSION
+fi
+
 # EXECUTE
 export STEAM_COMPAT_CLIENT_INSTALL_PATH=$client_dir
 export STEAM_COMPAT_DATA_PATH=$env_dir
 "$client_dir/steamapps/common/$proton_version/proton" $mode $*
-
-# Old method:
-#"$install_dir/proton" $mode $*
diff --git a/proton b/proton
@@ -1,25 +1,5 @@
 #!/bin/sh
 
-# Copyright © 2021 Tuncay D.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the “Software”), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-# SOFTWARE.
-
 # Run Windows programs through Proton from Steams installation, without
 # starting the main Steam client.
 #

diff --git a/proton b/proton
@@ -1,5 +1,25 @@
 #!/bin/sh
 
+# Copyright © 2021 Tuncay D.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the “Software”), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 # Run Windows programs through Proton from Steams installation, without
 # starting the main Steam client.
 #

diff --git a/proton b/proton
@@ -1,4 +1,4 @@
-#!/usr/bin/zsh
+#!/bin/sh
 
 # Run Windows programs through Proton from Steams installation, without
 # starting the main Steam client.
@@ -7,14 +7,26 @@
 # a folder "proton" in your home and point to it in the "env_dir" variable.
 # Then look in the "steamapps/common/" folder in your Steam installation for
 # available Proton versions to use.  Pick one and point the variable
-# "install_dir" to that directory.  Optionally install this script in a
+# "proton_version" to that folder name.  Obviously you have to download the
+# Proton version you want to use first from Steam client itself.  Then it
+# should be found in this directory.  Optionally install this script in a
 # directory that is in your $PATH, so you can run it easily from any place.
 #
 # Usage:
-#   proton ./program.exe
+#   proton program.exe
 
+# Folder name of the Proton version found under "steamapps/common/".
+# proton_version="Proton - Experimental"
+# proton_version="Proton 3.16"
+proton_version="Proton - Experimental"
+
+# Old method:
 # Path to the directory where the actual Proton from Steam is installed in.
-install_dir="$HOME/.steam/steam/steamapps/common/Proton - Experimental"
+# install_dir="$HOME/.steam/steam/steamapps/common/Proton - Experimental"
+
+# Path to installation directory of Steam.
+# Alternate path: "$HOME/.steam/steam"
+client_dir="$HOME/.local/share/Steam"
 
 # Data folder for Proton/WINE environment.  Folder must exist.
 env_dir=$HOME/proton
@@ -27,6 +39,9 @@ env_dir=$HOME/proton
 mode=run
 
 # EXECUTE
+export STEAM_COMPAT_CLIENT_INSTALL_PATH=$client_dir
 export STEAM_COMPAT_DATA_PATH=$env_dir
-"$install_dir/proton" $mode $*
+"$client_dir/steamapps/common/$proton_version/proton" $mode $*
 
+# Old method:
+#"$install_dir/proton" $mode $*
diff --git a/proton.zsh → proton b/proton.zsh → proton
diff --git a/proton.zsh b/proton.zsh
@@ -0,0 +1,32 @@
+#!/usr/bin/zsh
+
+# Run Windows programs through Proton from Steams installation, without
+# starting the main Steam client.
+#
+# Create a directory for the Proton environment to run in.  As an example make
+# a folder "proton" in your home and point to it in the "env_dir" variable.
+# Then look in the "steamapps/common/" folder in your Steam installation for
+# available Proton versions to use.  Pick one and point the variable
+# "install_dir" to that directory.  Optionally install this script in a
+# directory that is in your $PATH, so you can run it easily from any place.
+#
+# Usage:
+#   proton ./program.exe
+
+# Path to the directory where the actual Proton from Steam is installed in.
+install_dir="$HOME/.steam/steam/steamapps/common/Proton - Experimental"
+
+# Data folder for Proton/WINE environment.  Folder must exist.
+env_dir=$HOME/proton
+
+# Proton modes to run
+#   run = start target app
+#   waitforexitandrun = wait for wineserver to shut down
+#   getcompatpath = linux -> windows path
+#   getnativepath = windows -> linux path
+mode=run
+
+# EXECUTE
+export STEAM_COMPAT_DATA_PATH=$env_dir
+"$install_dir/proton" $mode $*
+
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