https://superuser.com/a/987512
# sync waits for transfers to complete sync # follow the progress of the sync command watch grep -e Dirty: -e Writeback: /proc/meminfo
212200cookie-checkLinux wait for USB transfer to complete
https://superuser.com/a/987512
# sync waits for transfers to complete sync # follow the progress of the sync command watch grep -e Dirty: -e Writeback: /proc/meminfo