From e8dbc8953fe3c6d460fe0d4463d823a2f012bff6 Mon Sep 17 00:00:00 2001
From: Locutus73 <alessandro.miele@gmail.com>
Date: Wed, 9 Jan 2019 12:31:53 +0100
Subject: [PATCH] Fixed regular expression.

Fixed regular expression for not matching commented parameters.
---
 cores_timestamp_off.sh  | 3 ++-
 cores_timestamp_on.sh   | 3 ++-
 scandoubler_off.sh      | 3 ++-
 scandoubler_on.sh       | 3 ++-
 vga_scaler_off.sh       | 3 ++-
 vga_scaler_on.sh        | 3 ++-
 video_info_off.sh       | 3 ++-
 video_info_on.sh        | 3 ++-
 video_mode_1080p50.sh   | 3 ++-
 video_mode_1080p60.sh   | 3 ++-
 video_mode_720p50.sh    | 3 ++-
 video_mode_720p60.sh    | 3 ++-
 vscale_0.25_scale.sh    | 3 ++-
 vscale_0.5_scale.sh     | 3 ++-
 vscale_fit_height.sh    | 3 ++-
 vscale_integer_scale.sh | 3 ++-
 vsync_low_latency.sh    | 3 ++-
 vsync_match_core.sh     | 3 ++-
 vsync_match_display.sh  | 3 ++-
 19 files changed, 38 insertions(+), 19 deletions(-)

diff --git a/cores_timestamp_off.sh b/cores_timestamp_off.sh
index 3dde8cf..a744014 100644
--- a/cores_timestamp_off.sh
+++ b/cores_timestamp_off.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.0.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.0 - 2019-01-08 - First commit.
 
 if [ ! -f "/media/fat/config/MiSTer.ini" ]
@@ -32,7 +33,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 DATECODE_VALUE=1
-sed -i "1,/rbf_hide_datecode=[0-9]/{s/rbf_hide_datecode=[0-9]/rbf_hide_datecode=$DATECODE_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*rbf_hide_datecode=[0-9]*/{s/^\s*rbf_hide_datecode=[0-9]*/rbf_hide_datecode=$DATECODE_VALUE/}" /media/fat/config/MiSTer.ini
 echo "rbf_hide_datecode=$DATECODE_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/cores_timestamp_on.sh b/cores_timestamp_on.sh
index 16e9dd0..f7acff0 100644
--- a/cores_timestamp_on.sh
+++ b/cores_timestamp_on.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.0.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.0 - 2019-01-08 - First commit.
 
 if [ ! -f "/media/fat/config/MiSTer.ini" ]
@@ -32,7 +33,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 DATECODE_VALUE=0
-sed -i "1,/rbf_hide_datecode=[0-9]/{s/rbf_hide_datecode=[0-9]/rbf_hide_datecode=$DATECODE_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*rbf_hide_datecode=[0-9]*/{s/^\s*rbf_hide_datecode=[0-9]*/rbf_hide_datecode=$DATECODE_VALUE/}" /media/fat/config/MiSTer.ini
 echo "rbf_hide_datecode=$DATECODE_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/scandoubler_off.sh b/scandoubler_off.sh
index 1723f35..3cfb4a2 100644
--- a/scandoubler_off.sh
+++ b/scandoubler_off.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.0.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.0 - 2019-01-08 - First commit.
 
 if [ ! -f "/media/fat/config/MiSTer.ini" ]
@@ -32,7 +33,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 SCANDOUBLER_VALUE=0
-sed -i "1,/forced_scandoubler=[0-9]/{s/forced_scandoubler=[0-9]/forced_scandoubler=$SCANDOUBLER_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*forced_scandoubler=[0-9]*/{s/^\s*forced_scandoubler=[0-9]*/forced_scandoubler=$SCANDOUBLER_VALUE/}" /media/fat/config/MiSTer.ini
 echo "forced_scandoubler=$SCANDOUBLER_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/scandoubler_on.sh b/scandoubler_on.sh
index 8c0f625..9f20f42 100644
--- a/scandoubler_on.sh
+++ b/scandoubler_on.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.0.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.0 - 2019-01-08 - First commit.
 
 if [ ! -f "/media/fat/config/MiSTer.ini" ]
@@ -32,7 +33,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 SCANDOUBLER_VALUE=1
-sed -i "1,/forced_scandoubler=[0-9]/{s/forced_scandoubler=[0-9]/forced_scandoubler=$SCANDOUBLER_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*forced_scandoubler=[0-9]*/{s/^\s*forced_scandoubler=[0-9]*/forced_scandoubler=$SCANDOUBLER_VALUE/}" /media/fat/config/MiSTer.ini
 echo "forced_scandoubler=$SCANDOUBLER_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/vga_scaler_off.sh b/vga_scaler_off.sh
index 09d6cea..d794156 100644
--- a/vga_scaler_off.sh
+++ b/vga_scaler_off.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.0.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.0 - 2019-01-08 - First commit.
 
 if [ ! -f "/media/fat/config/MiSTer.ini" ]
@@ -32,7 +33,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VGA_SCALER_VALUE=0
-sed -i "1,/vga_scaler=[0-9]/{s/vga_scaler=[0-9]/vga_scaler=$VGA_SCALER_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*vga_scaler=[0-9]*/{s/^\s*vga_scaler=[0-9]*/vga_scaler=$VGA_SCALER_VALUE/}" /media/fat/config/MiSTer.ini
 echo "vga_scaler=$VGA_SCALER_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/vga_scaler_on.sh b/vga_scaler_on.sh
index a2ffcc0..188f2a7 100644
--- a/vga_scaler_on.sh
+++ b/vga_scaler_on.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.0.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.0 - 2019-01-08 - First commit.
 
 if [ ! -f "/media/fat/config/MiSTer.ini" ]
@@ -32,7 +33,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VGA_SCALER_VALUE=1
-sed -i "1,/vga_scaler=[0-9]/{s/vga_scaler=[0-9]/vga_scaler=$VGA_SCALER_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*vga_scaler=[0-9]*/{s/^\s*vga_scaler=[0-9]*/vga_scaler=$VGA_SCALER_VALUE/}" /media/fat/config/MiSTer.ini
 echo "vga_scaler=$VGA_SCALER_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/video_info_off.sh b/video_info_off.sh
index 1eac925..a92da35 100644
--- a/video_info_off.sh
+++ b/video_info_off.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.0.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.0 - 2019-01-08 - First commit.
 
 if [ ! -f "/media/fat/config/MiSTer.ini" ]
@@ -32,7 +33,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VIDEO_INFO_VALUE=0
-sed -i "1,/video_info=[0-9]/{s/video_info=[0-9]/video_info=$VIDEO_INFO_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*video_info=[0-9]*/{s/^\s*video_info*=[0-9]/video_info=$VIDEO_INFO_VALUE/}" /media/fat/config/MiSTer.ini
 echo "video_info=$VIDEO_INFO_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/video_info_on.sh b/video_info_on.sh
index fa594de..818d2e6 100644
--- a/video_info_on.sh
+++ b/video_info_on.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.0.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.0 - 2019-01-08 - First commit.
 
 if [ ! -f "/media/fat/config/MiSTer.ini" ]
@@ -32,7 +33,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VIDEO_INFO_VALUE=10
-sed -i "1,/video_info=[0-9]/{s/video_info=[0-9]/video_info=$VIDEO_INFO_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\*svideo_info=[0-9]*/{s/^\s*video_info=[0-9]*/video_info=$VIDEO_INFO_VALUE/}" /media/fat/config/MiSTer.ini
 echo "video_info=$VIDEO_INFO_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/video_mode_1080p50.sh b/video_mode_1080p50.sh
index 80c7ad3..0e6b224 100644
--- a/video_mode_1080p50.sh
+++ b/video_mode_1080p50.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.0.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.0 - 2019-01-08 - First commit.
 
 if [ ! -f "/media/fat/config/MiSTer.ini" ]
@@ -32,7 +33,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VIDEO_VALUE=9
-sed -i "1,/video_mode=[0-9]/{s/video_mode=[0-9]/video_mode=$VIDEO_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*video_mode=[0-9]*/{s/^\s*video_mode=[0-9]*/video_mode=$VIDEO_VALUE/}" /media/fat/config/MiSTer.ini
 echo "video_mode=$VIDEO_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/video_mode_1080p60.sh b/video_mode_1080p60.sh
index 53436e1..02daac8 100644
--- a/video_mode_1080p60.sh
+++ b/video_mode_1080p60.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.0.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.0 - 2019-01-08 - First commit.
 
 if [ ! -f "/media/fat/config/MiSTer.ini" ]
@@ -32,7 +33,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VIDEO_VALUE=8
-sed -i "1,/video_mode=[0-9]/{s/video_mode=[0-9]/video_mode=$VIDEO_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*video_mode=[0-9]*/{s/^\s*video_mode=[0-9]*/video_mode=$VIDEO_VALUE/}" /media/fat/config/MiSTer.ini
 echo "video_mode=$VIDEO_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/video_mode_720p50.sh b/video_mode_720p50.sh
index 4502054..87e4d5a 100644
--- a/video_mode_720p50.sh
+++ b/video_mode_720p50.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.0.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.0 - 2019-01-08 - First commit.
 
 if [ ! -f "/media/fat/config/MiSTer.ini" ]
@@ -32,7 +33,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VIDEO_VALUE=7
-sed -i "1,/video_mode=[0-9]/{s/video_mode=[0-9]/video_mode=$VIDEO_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*video_mode=[0-9]*/{s/^\s*video_mode=[0-9]*/video_mode=$VIDEO_VALUE/}" /media/fat/config/MiSTer.ini
 echo "video_mode=$VIDEO_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/video_mode_720p60.sh b/video_mode_720p60.sh
index 7150694..60dc308 100644
--- a/video_mode_720p60.sh
+++ b/video_mode_720p60.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.0.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.0 - 2019-01-08 - First commit.
 
 if [ ! -f "/media/fat/config/MiSTer.ini" ]
@@ -32,7 +33,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VIDEO_VALUE=0
-sed -i "1,/video_mode=[0-9]/{s/video_mode=[0-9]/video_mode=$VIDEO_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*video_mode=[0-9]*/{s/^\s*video_mode=[0-9]*/video_mode=$VIDEO_VALUE/}" /media/fat/config/MiSTer.ini
 echo "video_mode=$VIDEO_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/vscale_0.25_scale.sh b/vscale_0.25_scale.sh
index 2a3d6a8..b1969b7 100644
--- a/vscale_0.25_scale.sh
+++ b/vscale_0.25_scale.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.1.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.1 - 2019-01-08 - MiSTer.ini downloaded from GitHub if missing.
 # Version 1.0 - 2019-01-07 - First commit.
 
@@ -33,7 +34,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VSCALE_VALUE=3
-sed -i "1,/vscale_mode=[0-9]/{s/vscale_mode=[0-9]/vscale_mode=$VSCALE_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*vscale_mode=[0-9]*/{s/^\s*vscale_mode=[0-9]*/vscale_mode=$VSCALE_VALUE/}" /media/fat/config/MiSTer.ini
 echo "vscale_mode=$VSCALE_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/vscale_0.5_scale.sh b/vscale_0.5_scale.sh
index 74cbe56..de61440 100644
--- a/vscale_0.5_scale.sh
+++ b/vscale_0.5_scale.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.1.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.1 - 2019-01-08 - MiSTer.ini downloaded from GitHub if missing.
 # Version 1.0 - 2019-01-07 - First commit.
 
@@ -33,7 +34,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VSCALE_VALUE=2
-sed -i "1,/vscale_mode=[0-9]/{s/vscale_mode=[0-9]/vscale_mode=$VSCALE_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*vscale_mode=[0-9]*/{s/^\s*vscale_mode=[0-9]*/vscale_mode=$VSCALE_VALUE/}" /media/fat/config/MiSTer.ini
 echo "vscale_mode=$VSCALE_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/vscale_fit_height.sh b/vscale_fit_height.sh
index adb59f9..85003bf 100644
--- a/vscale_fit_height.sh
+++ b/vscale_fit_height.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.1.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.1 - 2019-01-08 - MiSTer.ini downloaded from GitHub if missing.
 # Version 1.0 - 2019-01-07 - First commit.
 
@@ -33,7 +34,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VSCALE_VALUE=0
-sed -i "1,/vscale_mode=[0-9]/{s/vscale_mode=[0-9]/vscale_mode=$VSCALE_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*vscale_mode=[0-9]*/{s/^\s*vscale_mode=[0-9]*/vscale_mode=$VSCALE_VALUE/}" /media/fat/config/MiSTer.ini
 echo "vscale_mode=$VSCALE_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/vscale_integer_scale.sh b/vscale_integer_scale.sh
index 3658177..e4f33b6 100644
--- a/vscale_integer_scale.sh
+++ b/vscale_integer_scale.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.1.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.1 - 2019-01-08 - MiSTer.ini downloaded from GitHub if missing.
 # Version 1.0 - 2019-01-07 - First commit.
 
@@ -33,7 +34,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VSCALE_VALUE=1
-sed -i "1,/vscale_mode=[0-9]/{s/vscale_mode=[0-9]/vscale_mode=$VSCALE_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*vscale_mode=[0-9]*/{s/^\s*vscale_mode=[0-9]*/vscale_mode=$VSCALE_VALUE/}" /media/fat/config/MiSTer.ini
 echo "vscale_mode=$VSCALE_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/vsync_low_latency.sh b/vsync_low_latency.sh
index 55d8d43..23e40e3 100644
--- a/vsync_low_latency.sh
+++ b/vsync_low_latency.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.1.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.1 - 2019-01-08 - MiSTer.ini downloaded from GitHub if missing.
 # Version 1.0 - 2019-01-07 - First commit.
 
@@ -33,7 +34,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VSYNC_VALUE=2
-sed -i "1,/vsync_adjust=[0-9]/{s/vsync_adjust=[0-9]/vsync_adjust=$VSYNC_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*vsync_adjust=[0-9]*/{s/^\s*vsync_adjust=[0-9]*/vsync_adjust=$VSYNC_VALUE/}" /media/fat/config/MiSTer.ini
 echo "vsync_adjust=$VSYNC_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/vsync_match_core.sh b/vsync_match_core.sh
index 910e19b..0ab15ff 100644
--- a/vsync_match_core.sh
+++ b/vsync_match_core.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.1.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.1 - 2019-01-08 - MiSTer.ini downloaded from GitHub if missing.
 # Version 1.0 - 2019-01-07 - First commit.
 
@@ -33,7 +34,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VSYNC_VALUE=1
-sed -i "1,/vsync_adjust=[0-9]/{s/vsync_adjust=[0-9]/vsync_adjust=$VSYNC_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*vsync_adjust=[0-9]*/{s/^\s*vsync_adjust=[0-9]*/vsync_adjust=$VSYNC_VALUE/}" /media/fat/config/MiSTer.ini
 echo "vsync_adjust=$VSYNC_VALUE"
 reboot now
 exit 0
\ No newline at end of file
diff --git a/vsync_match_display.sh b/vsync_match_display.sh
index b66f016..fb2170b 100644
--- a/vsync_match_display.sh
+++ b/vsync_match_display.sh
@@ -18,6 +18,7 @@
 # You can download the latest version of this script from:
 # https://github.com/MiSTer-devel/Scripts_MiSTer
 
+# Version 1.1.1 - 2019-01-09 - Fixed regular expression for not matching commented parameters.
 # Version 1.1 - 2019-01-08 - MiSTer.ini downloaded from GitHub if missing.
 # Version 1.0 - 2019-01-07 - First commit.
 
@@ -33,7 +34,7 @@ then
 fi
 cp /media/fat/config/MiSTer.ini /media/fat/config/MiSTer.ini.bak
 VSYNC_VALUE=0
-sed -i "1,/vsync_adjust=[0-9]/{s/vsync_adjust=[0-9]/vsync_adjust=$VSYNC_VALUE/}" /media/fat/config/MiSTer.ini
+sed -i "1,/^\s*vsync_adjust=[0-9]*/{s/^\s*vsync_adjust=[0-9]*/vsync_adjust=$VSYNC_VALUE/}" /media/fat/config/MiSTer.ini
 echo "vsync_adjust=$VSYNC_VALUE"
 reboot now
 exit 0
\ No newline at end of file