diff --git a/common.sh b/common.sh
index 3e48661..8272a90 100644
--- a/common.sh
+++ b/common.sh
@@ -24,13 +24,6 @@ PERF=$(get_tmux_option "@easymotion-perf" "false")
 CASE_SENSITIVE=$(get_tmux_option "@easymotion-case-sensitive" "false")
 SMARTSIGN=$(get_tmux_option "@easymotion-smartsign" "false")
 
-# Create temporary input file with reset character
-create_input_file() {
-    local tmp_file=$(mktemp -t tmux-easymotion_keystroke-XXXXXXX)
-    printf '\x03' > "$tmp_file"
-    echo "$tmp_file"
-}
-
 # Build environment variables string for neww -d
 build_env_vars() {
     local motion_type=$1
diff --git a/easymotion.py b/easymotion.py
index 646a4ce..58e7896 100755
--- a/easymotion.py
+++ b/easymotion.py
@@ -342,14 +342,14 @@ def get_terminal_size():
     return width, height - 1  # Subtract 1 from height
 
 
-def getch(input_file=None, num_chars=1):
+def getch(input_str=None, num_chars=1):
     """Get character(s) from terminal or file
 
     Args:
-        input_file: Optional filename to read from. If None, read from stdin.
+        input_str: Optional string. If None, read from stdin.
         num_chars: Number of characters to read (default: 1)
     """
-    if input_file is None:
+    if input_str is None:
         # Read from stdin
         fd = sys.stdin.fileno()
         old_settings = termios.tcgetattr(fd)
@@ -359,16 +359,7 @@ def getch(input_file=None, num_chars=1):
         finally:
             termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
     else:
-        # Read from file
-        try:
-            with open(input_file, 'r') as f:
-                ch = f.read(num_chars)
-        except FileNotFoundError:
-            logging.info("File not found")
-            exit(1)
-        except Exception as e:
-            logging.error(f"Error reading from file: {str(e)}")
-            exit(1)
+        ch = input_str[:num_chars]
     if ch == '\x03':
         logging.info("Operation cancelled by user")
         exit(1)
diff --git a/mode-s.sh b/mode-s.sh
index 4a19076..070b74f 100755
--- a/mode-s.sh
+++ b/mode-s.sh
@@ -6,10 +6,6 @@ CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 # Load common configuration and functions
 source "$CURRENT_DIR/common.sh"
 
-# Create temporary input file
-tmp_file=$(create_input_file)
-
 # Prompt for single character
 ENV_VARS=$(build_env_vars "s")
-tmux command-prompt -1 -p 'easymotion:' "run-shell \"printf %s\\\\n \\\"%1\\\" > $tmp_file\"; \
-    neww -d '$ENV_VARS $CURRENT_DIR/easymotion.py $tmp_file'"
+tmux command-prompt -1F -p 'easymotion:' "neww -d '$ENV_VARS $CURRENT_DIR/easymotion.py %1"
diff --git a/mode-s2.sh b/mode-s2.sh
index 2c4f0c3..07cd642 100755
--- a/mode-s2.sh
+++ b/mode-s2.sh
@@ -6,18 +6,13 @@ CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 # Load common configuration and functions
 source "$CURRENT_DIR/common.sh"
 
-# Create temporary input file
-tmp_file=$(create_input_file)
-
 # Build environment variables
 ENV_VARS=$(build_env_vars "s2")
 
 # First prompt: get first character
 tmux command-prompt -1 -p 'easymotion char 1:' \
-    "run-shell \"printf '%1' > $tmp_file\"; \
-     set-option -g @_easymotion_tmp_char1 '%1'"
+    "set-option -g @_easymotion_tmp_char1 '%1'"
 
 # Second prompt: get second character and launch easymotion
-tmux command-prompt -1 -p 'easymotion char 2: #{@_easymotion_tmp_char1}' \
-    "run-shell \"printf '%1' >> $tmp_file && echo >> $tmp_file\"; \
-     neww -d '$ENV_VARS $CURRENT_DIR/easymotion.py $tmp_file'"
+tmux command-prompt -1F -p 'easymotion char 2: #{@_easymotion_tmp_char1}' \
+    "neww -d '$ENV_VARS $CURRENT_DIR/easymotion.py #{@_easymotion_tmp_char1}%1'"