Every experienced Linux user has been there: you install something, or move directories around, and suddenly command not found appears for tools you know are installed. You check which , type , echo $PATH , and still waste 10-20 minutes hunting down the issue. I've done it more times than I care to admit — especially after fresh server setups or when cleaning up dotfiles. That's why I built (and now constantly use) a Bash $PATH Debugger . Paste your $PATH and get instant diagnosis Here's how it works in practice: Copy your current PATH: echo $PATH Paste it into the tool Get a full report + fixed version in seconds Try it here: Bash $PATH Debugger What the tool does The debugger takes your raw $PATH string and analyzes every directory with these checks: Existence : Does the directory actually exist on the filesystem? Duplicates : Are you wasting lookup time with repeated entries? Permissions : Are any directories missing execute permissions for your user?…