Can I add a command in bash that starts when I open it?

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ThreadAuthorDate (-000)
M\Mike Hoy2008-10-24 05:02
|MJames Finstrom2008-10-24 05:19
M\Nathan2008-10-24 05:22
|MLisa Kachold2008-10-24 17:38
|MMike Hoy2008-10-24 20:42
|MLisa Kachold2008-10-24 21:06
M\Mike Hoy2008-10-25 04:13
|MMike Hoy2008-10-25 04:15
Mder.hans2008-10-25 08:12
MDazed_752008-10-25 15:25
MMike Hoy2008-10-25 20:59