well
in that dir, try gcc.. if it still says command not found "which gcc" and/or "whereis gcc". You might have it installed, but just not in path..
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++[>++++++<-]>[<++++++>-]<.>++++[>+++++<-]>[<
+++++>-]<+.+++++++..+++.>>+++++[<++++++>-]<+
+.<<+++++++++++++++.>.+++.------.--------.>+.
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