1e92d3f3fSGregory Neil ShapiroKnown Problems with some *roff versions 2e92d3f3fSGregory Neil Shapiro 3e92d3f3fSGregory Neil ShapiroIf you encounter the error: 4e92d3f3fSGregory Neil Shapiro 5e92d3f3fSGregory Neil ShapiroUnknown escape sequence in input: 33, 133 6e92d3f3fSGregory Neil Shapiro 7e92d3f3fSGregory Neil Shapirowhen trying to create op.txt then set the GROFF_NO_SGR environment 8e92d3f3fSGregory Neil Shapirovariable (see grotty(1) man page), e.g., 9e92d3f3fSGregory Neil Shapiro 10e92d3f3fSGregory Neil Shapirocsh% setenv GROFF_NO_SGR 1 11e92d3f3fSGregory Neil Shapirosh$ GROFF_NO_SGR=1; export GROFF_NO_SGR 12e92d3f3fSGregory Neil Shapiro 13*4313cc83SGregory Neil Shapiro$Id: README,v 8.1 2004-07-20 20:25:10 ca Exp $ 14