ubuntu@ubuntu:~$ script
Script started, file is typescript
ubuntu@ubuntu:~$ exit
exit
Script done, file is typescript
ubuntu@ubuntu:~$ script
Script started, file is typescript
ubuntu@ubuntu:~$ time sudo ddrescue -f /dev/sda /dev/sdb
GNU ddrescue 1.23
Press Ctrl-C to interrupt
     ipos:  500107 MB, non-trimmed:        0 B,  current rate:   9265 kB/s
     opos:  500107 MB, non-scraped:        0 B,  average rate:  87187 kB/s
non-tried:        0 B,  bad-sector:        0 B,    error rate:       0 B/s
  rescued:  500107 MB,   bad areas:        0,        run time:  1h 35m 35s
pct rescued:  100.00%, read errors:        0,  remaining time:         n/a
                              time since last successful read:         n/a
Finished                                     

real    95m35.287s
user    0m44.399s
sys     14m33.520s