(a) the result of the command "ls -l /home/user/bin/script1.sh"
-rwx------ 1 user000 user000 936 Dec 5 2014 script1.sh my mistake sorry :-/script1.sh checks (using apt-get update && apt-get upgrade) if there're (or not) any updates availables showing me only the total number of packages, so inside /home/user/.bashrc, exactly I've:
/home/user/bin/script1.sh & the problem is "&" because without it script does run after executing of script, output goes to shell with "| wall" thanks Pol