You might have a tags file in your current directory. You might also have another system-wide or group-wide tags file. How can you make vi search both of them?
:) prompt, type a backslash (
between the tag filenames:
set tags=tags\ /usr/local/lib/tags
|30.28 Keep Track of Functions and Included Files with ctags and tags||30.30 vi Outsmarts Dual-Function Function Keys|