cannot open output file a.out: Permission denied, on a simple compilation

Question

I wrote some code in vim and whenever I try to run the code it shows this:

coolmego@coolmego-PC:~/coolmego/cprograms$ gcc dfs8puzz.c 
/usr/bin/ld: cannot open output file a.out: Permission denied
collect2: ld returned 1 exit status
coolmego@coolmego-PC:~/coolmego/cprograms$ ./a.out
bash: ./a.out: No such file or directory

What should I do?

Solution 1

Move to a directory where you are allowed to write.

Solution 2

This is because if you only have write permissions, but you are not the owner the directory.

1. Check your user name:

   whoami
   

2. Make yourself the owner of the directory and its contents:

    sudo chown -R "$USER:" /path/to/the/directory
   

3. Set read/write/execute permission

   chmod -R 700 /path/to/the/directory
   

refer https://askubuntu.com/questions/466605/cannot-open-output-file-permission-denied