Shell Programming and Scripting

#!/bin/bash
while true
do
    # Check if file sent or received....
    if Received
    then ./filename
    fi
    sleep 10 # for 10 seconds
done

#!/bin/bash
F="anne.txt"
M1=$(stat -c %y "$F") # Initialize to avoid running at startup
while true
do
    M2=$(stat -c %y "$F")
    if [ "$M2" != "$M1" ]
    then
        ./filename.sh && M1=$M2 # Update variable only if filename.sh succeed (exit 0)
    fi
    sleep 10 # for 10 seconds
done