int :sysinfo-uptime

Available only on Linux.

Returns the system's running time, in seconds. Like other Linux-only sysinfo functions, the result is cached.

# Sysinfo example.
:set &UM &US :sysinfo-uptime
:set &UH :div &UM i60
:set &UD :div ( :div &UH i60 ) i24
:mod &UH i24
:mod &UM i60
:mod &US i60
:writeln s*System uptime: * $UD s'd ' $UH s'h ' $UM s'm ' $US s's'