Filespec: the file filter

F sets which files show in the file window (each window has its own). The current filespec appears in the window’s title. Specifications are separated by spaces, ; or ,, of three kinds, as in ZTreeWin:

• name: a glob (*.rs, a?c*, [abc]*), case-insensitive; in quotes, a name can contain spaces ("my file*");
• date: <, =, >, <=, >= or <> and a date in the order of the configured format, with /, . or - and a 2- or 4-digit year (>01/05/2026; 2026-05-01 always works), or TODAY and TODAY-n (>TODAY-7: the last 7 days);
• size: the same with an s after the operator (>=s200000); K, M and G also work (>s100M).

A leading - negates (-*.bak; -<s1K is the same as >=s1K). Within each kind, positive specifications are ORed together, except >a immediately followed by <b, which is the range between the two (>=01/05/2026,<=31/05/2026: May); <> excludes. Between kinds, AND applies: *.txt,=TODAY,<s1000 are the .txt files from today smaller than 1000 bytes.

* (or an empty prompt) shows everything. ↑ brings up earlier filespecs.

See also: the file window, tags (Ctrl+T in the tree tags what matches the filespec).