Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
function::cmdline_str - Fetch all command line arguments from current process
SYNOPSIS
cmdline_str:string()
ARGUMENTS
None
DESCRIPTION
Returns all arguments from the current process delimited by spaces. Returns the empty string when the
arguments cannot be retrieved.
SystemTap Tapset Reference March 2016 FUNCTION::CMDLINE_ST(3stap)