Fix up DATE env

Author: stew675

install.sh

@@ -109,15 +109,16 @@ function link_extension {
 }
 
 function link_module {
-    mv ${KLIPPER_PATH}/klippy/extras/shaketune ${K_SHAKETUNE_PATH}/backups/shaketune_link.$date
+    DATE=$(date +"%Y%m%d%H%M%S")
+    mv ${KLIPPER_PATH}/klippy/extras/shaketune ${K_SHAKETUNE_PATH}/backups/shaketune_link.$DATE
     echo "[INSTALL] Linking Shake&Tune module to Klipper extras"
     ln -frsn ${K_SHAKETUNE_PATH}/shaketune ${KLIPPER_PATH}/klippy/extras/shaketune
 }
 
 function update_klipper {
     DATE=$(date +"%Y%m%d%H%M%S")
-    cp /home/mks/klipper/klippy/extras/resonance_tester.py ${K_SHAKETUNE_PATH}/backups/resonance_tester.py.$date
-    cp /home/mks/klipper/klippy/extras/shaper_calibrate.py ${K_SHAKETUNE_PATH}/backups/shaper_calibrate.py.$date
+    cp /home/mks/klipper/klippy/extras/resonance_tester.py ${K_SHAKETUNE_PATH}/backups/resonance_tester.py.$DATE
+    cp /home/mks/klipper/klippy/extras/shaper_calibrate.py ${K_SHAKETUNE_PATH}/backups/shaper_calibrate.py.$DATE
     cp resonance_tester.py shaper_calibrate.py /home/mks/klipper/klippy/extras
 }