diff --git a/action.yml b/action.yml
index a0c57cc..9e40e01 100644
--- a/action.yml
+++ b/action.yml
@@ -84,59 +84,55 @@ runs:
     
     - name: Prepare and Validate Inputs
       id: parameter_validation
-      shell: pwsh
+      shell: bash
       run: |
-        # Parse and validate the generation
-        $generation = "${{ inputs.generation }}"
-        if (-not $generation -match '^\d+\.\d+\.\d+\.\d+$') {
-          throw "Generation format is invalid. Must be X.X.X.X where X is a number."
-        }
+        # Validate the generation format (X.X.X.X)
+        if ! [[ $generation =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+          echo "Generation format is invalid. Must be X.X.X.X where X is a number."
+          exit 1
+        fi
 
         # Validate architecture
-        $architecture = "${{ inputs.architecture }}"
-        if ($architecture -ne "64" -and $architecture -ne "32") {
-          throw "Architecture must be 64 or 32."
-        }
-
-        # Validate numeric inputs
-        $patch = "${{ inputs.patch }}"
-        $hotfix = "${{ inputs.hotfix }}"
-        $build = "${{ inputs.build }}"
-        if (-not($patch -match '^\d+$' -and $hotfix -match '^\d+$' -and $build -match '^\d+$')) {
-          throw "Patch, Hotfix, and Build must be numeric."
-        }
-
-        # Adjust generation format for installation name and path
-        $formattedGeneration = $generation -replace '\.', '_'
-        $installationName = "CODESYS ${generation}"
-        if ($patch -ne "0") {
-          $installationName += ".$patch"
-          $formattedGeneration += "_$patch"
-        }
-
-        # Determine installation path based on architecture
-        if ($architecture -eq "64") {
-          $installationPath = "C:\Program Files\CODESYS ${formattedGeneration}"
-        } else {
-          $installationPath = "C:\Program Files (x86)\CODESYS ${formattedGeneration}"
-        }
+        if [ "$architecture" != "64" ] && [ "$architecture" != "32" ]; then
+          echo "Architecture must be 64 or 32."
+          exit 1
+        fi
+
+        # Validate numeric inputs for patch, hotfix, and build
+        if ! [[ $patch =~ ^[0-9]+$ ]] || ! [[ $hotfix =~ ^[0-9]+$ ]] || ! [[ $build =~ ^[0-9]+$ ]]; then
+          echo "Patch, Hotfix, and Build must be numeric."
+          exit 1
+        fi
+
+        # Construct installation name and path
+        installation_name="CODESYS ${generation}"
+        formattedGeneration=$(echo $generation | sed 's/\./_/g')
+        if [ "$patch" != "0" ]; then
+          installation_name="${installation_name}.${patch}"
+          formattedGeneration="${formattedGeneration}_$patch"
+        fi
+
+        if [ "$architecture" == "64" ]; then
+          installation_path="C:\Program Files\CODESYS ${formattedGeneration}"
+        else
+          installation_path="C:\Program Files (x86)\CODESYS ${formattedGeneration}"
+        fi
 
         # Check if the specified directory exists, otherwise create it
-        if (-not (Test-Path -Path $installationPath)) {
-          New-Item -ItemType Directory -Path $installationPath | Out-Null
-          Write-Host "Installation directory created at: $installationPath"
-        } else {
-          Write-Host "Installation directory already exists."
-        }
-
-        # Output variables for use in subsequent steps
-        echo "generation=$generation" >> $env:GITHUB_OUTPUT
-        echo "architecture=$architecture" >> $env:GITHUB_OUTPUT
-        echo "patch=$patch" >> $env:GITHUB_OUTPUT
-        echo "hotfix=$hotfix" >> $env:GITHUB_OUTPUT
-        echo "build=$build" >> $env:GITHUB_OUTPUT
-        echo "installation-path=$installationPath" >> $env:GITHUB_OUTPUT
-        echo "installation-name=$installationName" >> $env:GITHUB_OUTPUT
+        #if [ ! -d "$installation_path" ]; then
+        #  mkdir -p "$installation_path"
+        #  echo "Installation directory created at: $installation_path"
+        #else
+        #  echo "Installation directory already exists."
+        #fi
+
+        echo "generation=$generation" >> $GITHUB_OUTPUT
+        echo "architecture=$architecture" >> $GITHUB_OUTPUT
+        echo "patch=$patch" >> $GITHUB_OUTPUT
+        echo "hotfix=$hotfix" >> $GITHUB_OUTPUT
+        echo "build=$build" >> $GITHUB_OUTPUT
+        echo "installation-path=$installation_path" >> $GITHUB_OUTPUT
+        echo "installation-name=$installation_name" >> $GITHUB_OUTPUT
 
     - name: Install CODESYS
       shell: pwsh