File system check can be tedious sometimes. User may want to check the progress of the fsck, which is not enabled by default. To do that, add -C (capital C) with the fsck command.
fsck -C /dev/sda1
The original argument is:
fsck -C0 /dev/sda1
Although, it would work without number if you put the -C in front of other arguments, like -f (forcing the file system check) -y (yes to auto repair). A usable fsck command could be the following:
fsck -fy -C0 /dev/sda1
fsck -C -fy /dev/sda1
Please note, -c (small C) would result a read only test. This test will try to read all the blocks in the disk and see if it is able to read them or not. It is done through a program called ‘badblock’. If you are running badblock test on a large system, be ready to spend a large amount of time for that.