# Print arguments of successfully started processes
dtrace -n 'proc:::exec-success { printf("%s", curpsinfo->pr_psargs); }'

(See http://docs.oracle.com/cd/E19253-01/817-6223/gelrh/index.html for
 probes and special variables)

See also:
http://dsc.sun.com/solaris/articles/dtrace_quickref/dtrace_built_in_vars.html


# Files opened by process,
dtrace -n 'syscall::open*:entry { printf("%s %s",execname,copyinstr(arg0)); }'

Observe the "copyinstr" used to copy the syscall's string argument
into kernel space. [What happens without it? Why?]


# Syscall count by program,
dtrace -n 'syscall:::entry { @num[execname] = count(); }'