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(force) is given. fsck(8) will return with a zero exit status if "fsck -p" is used in this circumstance, but all other invocations (e.g, "fsck", "fsck /filesystem", "fsck -p /filesystem") will return with a non-zero exit status in this circumstance. Per discussions with various people including Bill Sommerfeld. - Use "file system" instead of "filesystem"