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STRING-UNDEF(1) General Commands Manual STRING-UNDEF(1)
NNAAMMEE
string-undef - expanding undefined strings
DDEESSCCRRIIPPTTIIOONN
UUsseerr ddeeffiinneedd ssttrriinngg
The sting "mys" is undefined and remains undefined.
Its value is "", and now it is defined, and its value is still "".
After redefining it to "newval", it is of course still defined.
After removing the definition, it is now undefined.
UUsseerr ddeeffiinneedd mmaaccrroo
The macro "mym" is undefined.
It has no effect: But now it is defined.
After defining it as: neweffect it is of course still defined.
After removing the definition, it is now undefined.
RReennaammeedd mmaaccrroo
The standard .BR macro is defined, and it wwoorrkkss.
After renaming it, the new name is defined, and wwoorrkkss.
PPrreeddeeffiinneedd ssttrriinngg
A predefined string is defined and has the value "(R)".
OpenBSD April 9, 2018 STRING-UNDEF(1)
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