file writable name
Returns 1 if file name is writable by the current user, 0 otherwise.
RS just noticed that from Windows 2000 over network boundaries, it may report 1 even for directories where I positively may not write. A hacky workaround seems to be:
set dummyname $name.[clock seconds] ;# not to clobber an existing one
if { [catch {file open $dummyname w]} fp] } {
# not writable
} else {
close $fp
file delete $dummyname
}Vince adds --- 'NativeAccess' in tclWinFile.c needs updating to deal with Windows user/permission-related information (whatever that is -- anyone have any pointers?).
See also:
Tcl syntax help - Category Command - Category Introspection - Category File