I think you need to check sudoer file and add the user through root privileges. The sudoers file located at: /etc/sudoers(depends on linux base), contains the rules that users must follow when using the sudo command. Read out for suoders for you version of Linux/Unix. you will get lot of materia...

Code which works with a single document pdftotext *.pdf - | grep therapy You can use find as described in the thread How can I grep in PDF files? but I would like to understand why the above command is not working. Differential code where pdfgrep may add some benefit but still early in devel...

How can a post be deleted? By a user: You can typically delete your own posts at will; for exceptions, see When can’t I delete my own post? below. To delete a post, just use the delete link below it. Moderators can delete any post instantly. Users with reputation ≥ 2k (more precisely, the edit...

I'm pretty happy how wget -r works and downloads the things. I have set up a localhost server which serves a website and the pages look like this: http://localhost:8080/ http://localhost:8080/foo http://localhost:8080/bar http://localhost:8080/blog/ http://localhost:8080/blog/1-and-here-the-slu...