Ola lista,
Alguem aí sabe em qual pacote está o comando truss?
Veja a saida dele:

# truss cat /dev/zero
...
open64("/dev/zero", O_RDONLY)                   = 3

fstat64(3, 0xFFBFF950)                          = 0
read(3, "\0\0\0\0\0\0\0\0\0\0\0\0".., 8192)     = 8192
write(1, "\0\0\0\0\0\0\0\0\0\0\0\0".., 8192)    = 8192
read(3, "\0\0\0\0\0\0\0\0\0\0\0\0".., 8192)     = 8192

write(1, "\0\0\0\0\0\0\0\0\0\0\0\0".., 8192)    = 8192
read(3, "\0\0\0\0\0\0\0\0\0\0\0\0".., 8192)     = 8192

Thanks