file-size

[procedure] file-size filename

Bigloo, Chicken, MzScheme: returns size of the given file name.

See also file-modification-time, file-position. See Concept:FileSystem.

ChezScheme has file-length, which takes a port instead of a pathname.

[procedure] file-size fname/fd/port [chase?]

Scsh: see also file-info.

[procedure] file-size filename &keyword follow-link?

Gauche: see also sys-stat.