Pasted

user@bash: ./myscript.sh
bash: ./myscript.sh: Permission denied
user@bash: ls -l myscript.sh 
-rw-r--r-- 18 user users 4096 Feb 17 09:12 myscript.sh
user@bash: chmod 755 myscript.sh
user@bash: ls -l myscript.sh
-rwxr-xr-x 18 user users 4096 Feb 17 09:12 myscript.sh
user@bash: ./myscript.sh
Hello World!