fix backup history file output

diff --git a/backup b/backup
index ca304d2d50b45ed4c3ba91f498a69683fbc0f629..0fcc1b5b825a014e43db75df2d06713fc4cb4cf1 100755 (executable)
--- a/backup
+++ b/backup
@@ -171,22 +171,22 @@ make_history()
                echo "ℹ️  INFO: day history add $datum $time"
                echo "$datum" > $back_path/day
                echo "$datum" > day
-               echo "$datum $time day" >> $backup_history
+               echo "$datum $time day" >> $backup_history_file
        elif [ -f "$backup_path/week" ]; then
                echo "ℹ️  INFO: week history add $datum $time"
                echo "$datum" > $backup_path/week
                echo "$datum" > week
-               echo "$datum $time week" >> $backup_history
+               echo "$datum $time week" >> $backup_history_file
        elif [ -f "$backup_path/month" ]; then
                echo "ℹ️  INFO: month history add $datum $time"
                echo "$datum" > $backup_path/month
                echo "$datum" > month
-               echo "$datum $time month" >> $backup_history
+               echo "$datum $time month" >> $backup_history_file
        else
                echo "ℹ️  INFO: none history add $datum $time"
                echo "$datum" > $backup_path/none
                echo "$datum" > none
-               echo "$datum $time none" >> $backup_history
+               echo "$datum $time none" >> $backup_history_file
        fi
 }