Once a system of tags has been set up, it can be used to collect related information into special lists.
C-c / m or
C-c \ (
Create a sparse tree with all headlines matching a tags search. With a
C-u prefix argument, ignore headlines that are not a TODO line.
M-x org-agenda m (
Create a global list of tag matches from all agenda files. See Matching tags and properties.
M-x org-agenda M (
Create a global list of tag matches from all agenda files, but check only TODO items and force checking subitems (see the option
These commands all prompt for a match string which allows basic Boolean logic like ‘
+boss+urgent-project1’, to find entries with tags ‘
boss’ and ‘
urgent’, but not ‘
project1’, or ‘
Kathy|Sally’ to find entries which are tagged, like ‘
Kathy’ or ‘
Sally’. The full syntax of the search string is rich and allows also matching against TODO keywords, entry levels and properties. For a complete description with many examples, see Matching tags and properties.