commands not found on zsh

Question

I am using the z Shell (zsh) instead of the default bash, and something wrong happen so that all commands who used to work are no longer recognized:

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Answer 1

In my case I was using the variable path in lowercase!

So in /etc/profile.d I was running a script that made use of the variable path. Because it was in lowercase I never thought it could mess up with the actual variable PATH. Be careful and do not use the variable path on your scripts.