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1.1 ! schwarze 1: .TH REGISTER 1 "May 31, 2015" OpenBSD ! 2: .SH NAME ! 3: register \- conditional testing whether a register is defined ! 4: .SH DESCRIPTION ! 5: .ie rmyreg OOPS ! 6: .el not yet defined ! 7: .br ! 8: .nr myreg 0 ! 9: .ie rmyreg now defined ! 10: .el OOPS ! 11: .if !rmyreg OOPS