| -c | Print the CPU number that each entry was logged from. |
| -f | Print the file and line number that each entry was logged from. |
| -q | Quiet mode; do not print the column header. |
| -r | Print relative timestamps rather than absolute timestamps. |
| -t | Print the timestamp for each entry. |
| -i ktrfile | File containing saved ktr trace events; for more information see the ktr(4) manual page. |
| -e execfile | The kernel image to resolve symbols from. The default is the value returned via getbootfile(3). |
| -m corefile | The core file or memory image to read from. The default is /dev/mem. |
| -o outfile | The file to write the output to. The default is standard output. |
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