Command line project compilation

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When i try command execute_flow -compile, I get command not found. Where is the execute_flow executable?

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execute_flow is a tcl script command that is executed within a quartus executable. Go back and read the link ( https://www.altera.com/support/support-resources/design-software/quartus-ii/sof-qts-scripting.html ) referred to in the first response in greater detail. execute_flow is shown in context there.