From 4d9174b9ea1289e131ace2f45d00546ba170c979 Mon Sep 17 00:00:00 2001
From: Daniel Han <danielhanchen@gmail.com>
Date: Thu, 4 Jun 2026 00:12:53 -0700
Subject: [PATCH] install.sh: redirect Windows exes from /dev/null (fix curl|sh
 stdin drain)

`curl https://unsloth.ai/install.sh | sh` runs install.sh from a pipe, so the
script *is* the shell's stdin. A Windows process launched via WSL interop
(powershell.exe / cmd.exe) inherits that stdin and drains the remaining
piped script, truncating it -- dash then aborts parsing the tail with
"Syntax error: Unterminated quoted string". This surfaced as a non-fatal
"sh: <line>: Unterminated quoted string" near the end of every non-tty
install (e.g. the WoA install.ps1 -> curl|sh flow). Add `</dev/null` to the
three Windows-exe invocations (create_studio_shortcuts' powershell .lnk
writer + the two browser-open helpers) so they cannot consume the script.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---
 install.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/install.sh b/install.sh
index bd8aca56fc..8cc69a3132 100755
--- a/install.sh
+++ b/install.sh
@@ -732,9 +732,9 @@ _open_browser() {
     elif grep -qi microsoft /proc/version 2>/dev/null; then
         # WSL: xdg-open is unreliable; use Windows browser via PowerShell or cmd
         if command -v powershell.exe >/dev/null 2>&1; then
-            powershell.exe -NoProfile -Command "Start-Process '$_url'" >/dev/null 2>&1 &
+            powershell.exe -NoProfile -Command "Start-Process '$_url'" </dev/null >/dev/null 2>&1 &
         elif command -v cmd.exe >/dev/null 2>&1; then
-            cmd.exe /c start "" "$_url" >/dev/null 2>&1 &
+            cmd.exe /c start "" "$_url" </dev/null >/dev/null 2>&1 &
         elif command -v xdg-open >/dev/null 2>&1; then
             xdg-open "$_url" >/dev/null 2>&1 &
         else
@@ -1232,7 +1232,7 @@ WSLPS1_EOF
             # Convert WSL path to Windows path for powershell.exe
             _css_ps1_win=$(wslpath -w "$_css_ps1_tmp" 2>/dev/null)
             if [ -n "$_css_ps1_win" ]; then
-                powershell.exe -NoProfile -ExecutionPolicy Bypass -File "$_css_ps1_win" >/dev/null 2>&1 && _css_created=1
+                powershell.exe -NoProfile -ExecutionPolicy Bypass -File "$_css_ps1_win" </dev/null >/dev/null 2>&1 && _css_created=1
             fi
             rm -f "$_css_ps1_tmp"
         fi