Published onJanuary 2, 2026Fixing 'dotnet not found' on Linux (Bash, Zsh, Fish & CI)LinuxUbuntu.NETIf `dotnet` works in one terminal but not another — or your CI says 'command not found' — it's almost always a PATH + shell startup file issue. Here's how to fix it across Bash, Zsh, Fish, and pipelines.