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How do I use '_' and other characters on LaTeX?

I need to put samples of some command lines in a LaTeX file, but every time I try to use some characters (such as _) I get the " !Missing $ inserted" error.

How can I write strings such as:

./configure FC=gfortran  --with-cuda --without-mpi FLAGS_CHECK="-g -O2" FLAGS_NO_CHECK="-g -O2 -ffree-line-length-none -I../shared/ -L/usr/local/cuda/lib64  -fopenmp"

Without having to use $...$? (I don't want it to look like a math expression.)

Solution

  • Use the backslash to escape, i.e., \_. Alternatively, use verbatim environment or a code package (e.g., listings).