executing Bash Scripts
 

I wrote a simple bash script but i can't run it, i named it mmm.sh
i typed ls to make sure am in right directory and i tried ./mmm and ./mmm.sh both tell me file not found.

Did you make the scrip executable? If not, type "chmod +x mmm.sh". Then you should be able to run it by doing "./mmm.sh"

I added 'chmod +x mmm.sh' at the end of the bash script but now when i run it './mmm.sh' it tells me permision denied

No, run "chmod +x mmm.sh" in the console, don't add it to the script. This will make the mmm.sh script executable.