1 REGISTER(1) General Commands Manual REGISTER(1)
6 register - conditional testing whether a register is defined
8 D
\bDE
\bES
\bSC
\bCR
\bRI
\bIP
\bPT
\bTI
\bIO
\bON
\bN
12 identifier + identifier: myreg is defined
14 escape sequence after identifier: -myreg is defined
18 OpenBSD February 6, 2019 REGISTER(1)