I've been using computers for a long time, starting way back with DOS 4.0, and I used to know my way around command lines pretty well. Recently, I switched to Debian 13 (Trixie) to escape Windows, but I'm having a lot of trouble with KDE and Gnome. I can access files and folders with the 'ls' command, but when I try to change directories to 'Documents', it says that the directory doesn't exist. Also, I can't run commands with sudo. How can I grant myself (the only user on the system) permissions to change directories and use the terminal more effectively in Gnome?
3 Answers
It looks like you might be misspelling the directory name since Linux is case-sensitive. Make sure you're typing 'Documents' exactly as it appears. You can also use Tab completion to avoid mistakes. For sudo access, if you set a password for the root user during installation, your usual user won’t have sudo privileges by default. To gain sudo rights, you’ll need to add yourself to the sudo group by logging in as root, which you can do with the 'su' command.
You shouldn't need superuser rights to install applications at the user level. Most user-installed apps can be set up without sudo access. Make sure you’re trying to install them in the correct user directories!
If you’re having issues with changing directories, remember that directory names are case-sensitive, so 'cd Music' is different from 'cd music'. Using Tab completion can help you select the correct directory name easily. As for sudo, if you did set a root password during installation, your user might not have sudo access. You can check the Debian wiki for steps to grant yourself permission, but you'll need to use the root password for that.

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