From 990b01357e1945e3c4812a3990faab351b31ad66 Mon Sep 17 00:00:00 2001
From: "stefano.salvi" <stefano.salvi@noreply.localhost>
Date: Thu, 6 Nov 2025 15:30:13 +0000
Subject: [PATCH] cloneScreens

Lo script descritto nelle slide
---
 cloneScreens | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 cloneScreens

diff --git a/cloneScreens b/cloneScreens
new file mode 100644
index 0000000..e04d280
--- /dev/null
+++ b/cloneScreens
@@ -0,0 +1,67 @@
+#!/bin/bash
+function setClone  {
+        PRIMARY=$1
+        SECONDARY=$2
+        while read -r l
+        do
+                if echo $l | grep -Eq "^[a-zA-Z][a-zA-Z0-9-]"
+                then
+                        DEV=`echo $l | sed -e "s/ .*$//"`
+                        MODELIST=`echo ${DEV} | sed -e "s/-/_/g"`_MODES
+                        typeset -n CML=$MODELIST
+                elif echo $l | grep -q "^[0-9]"
+                then
+                        MODE=`echo $l | sed -e "s/ .*$//"`
+                        CML="$CML $MODE"
+                fi
+        done
+        PRIMARY_LIST=`echo ${PRIMARY} | sed -e "s/-/_/g"`_MODES
+        SECONDARY_LIST=`echo ${SECONDARY} | sed -e "s/-/_/g"`_MODES
+        typeset -n PRIMARY_MODES=$PRIMARY_LIST
+        typeset -n SECONDARY_MODES=$SECONDARY_LIST
+        MODE=""
+        for pm in $PRIMARY_MODES
+        do
+                for sm in $SECONDARY_MODES
+                do
+                        if [ $pm = $sm -a -z $MODE ]
+                        then
+                                MODE=$pm
+                        fi
+                done
+        done
+        if [ -z "$MODE" ]
+        then
+                echo Nessun modo comune ERRORE!
+                exit 2
+        else
+                echo $MODE
+                xrandr --output $PRIMARY --mode $MODE
+                xrandr --output $SECONDARY --mode $MODE
+                xrandr --output $SECONDARY --same-as $PRIMARY
+        fi
+}
+
+
+POSITION='same-as'
+if [ -n "$1" ]
+then
+        if [ $1 = '-l' ]
+        then
+                POSITION='left-of'
+        fi
+        if [ $1 = '-r' ]
+        then
+                POSITION='right-of'
+        fi
+fi
+PRIMARY=`xrandr | grep " connected" | grep primary | sed -e "s/ .*$//"`
+SECONDARY=`xrandr | grep " connected" | grep -v primary | sed -e "s/ .*$//"`
+
+if [ $POSITION = 'same-as' ]
+then
+        xrandr | setClone $PRIMARY $SECONDARY
+else
+        xrandr --output $SECONDARY --$POSITION $PRIMARY
+fi
+