diff --git a/scripts/InstallAzureAICLIDeb.sh b/scripts/InstallAzureAICLIDeb.sh
index 84c8754f..a8eb0104 100644
--- a/scripts/InstallAzureAICLIDeb.sh
+++ b/scripts/InstallAzureAICLIDeb.sh
@@ -34,6 +34,18 @@ fi
 
 # Check if dotnet 7.0 is installed
 if ! command -v dotnet &> /dev/null; then
+  echo "dotnet is not installed."
+  dotnet_version=0
+else
+  dotnet_version=$(dotnet --version | cut -d. -f1)
+fi
+
+if [ "$dotnet_version" -eq "7" ]; then
+    dotnet_version=$(dotnet --version)
+    echo "dotnet $dotnet_version is already installed."
+else
+    echo "Installing dotnet 7.0..."
+
     # Update the package list
     sudo apt-get update
 
@@ -111,13 +123,13 @@ fi
 echo "Installing Azure.AI.CLI..."
 
 if [ "$EUID" -ne 0 ]; then # if we're not root
-    dotnet tool install --global --add-source . Azure.AI.CLI --version ${AICLI_VERSION}
+    dotnet tool update --global --add-source . Azure.AI.CLI --version ${AICLI_VERSION}
     DOTNET_TOOLS_PATH="$HOME/.dotnet/tools"
 elif [ -n "$SUDO_USER" ]; then # if we're root and SUDO_USER is set, run as SUDO_USER
-    sudo -u $SUDO_USER dotnet tool install --global --add-source . Azure.AI.CLI --version ${AICLI_VERSION}
+    sudo -u $SUDO_USER dotnet tool update --global --add-source . Azure.AI.CLI --version ${AICLI_VERSION}
     DOTNET_TOOLS_PATH="/home/$SUDO_USER/.dotnet/tools"
 else # if we're root and SUDO_USER is not set, use /root as the home directory
-    dotnet tool install --global --add-source . Azure.AI.CLI --version ${AICLI_VERSION}
+    dotnet tool update --global --add-source . Azure.AI.CLI --version ${AICLI_VERSION}
     DOTNET_TOOLS_PATH="/root/.dotnet/tools"
 fi
 
diff --git a/src/ai/commands/dev_command.cs b/src/ai/commands/dev_command.cs
index 257246cd..59ca3525 100644
--- a/src/ai/commands/dev_command.cs
+++ b/src/ai/commands/dev_command.cs
@@ -103,8 +103,8 @@ private void DoDevShell()
         {
             DisplayBanner("dev.shell");
 
-            var fileName = OS.IsLinux() ? "bash" : "cmd.exe";
-            var arguments = OS.IsLinux() ? "-li" : "/k PROMPT (ai dev shell) %PROMPT%& title (ai dev shell)";
+            var fileName = !OS.IsWindows() ? "bash" : "cmd.exe";
+            var arguments = !OS.IsWindows() ? "-li" : "/k PROMPT (ai dev shell) %PROMPT%& title (ai dev shell)";
 
             Console.WriteLine("Environment populated:\n");