sha256sum & sha512sum

Question 1

sha256sum & sha512sum

Answer 1

Print or check SHA256 (256-bit) checksums.

Print or check SHA512 (512-bit) checksums.

Question 2

sha256sum & sha512sum

• b
• c

–tag

• t
• z

Answer 2

• b, –binary, Read in binary mode.
• c, –check, Read SHA256 or 512 sums from the FILEs and check them.

–tag, Create a BSD-style checksum.

• t, –text, Read in text mode (default).
• z, –zero, End each output line with NUL, not newline, and disable file name escaping.

Question 3

sha256sum & sha512sum [Verifying Checksums]

–ignore-missing

–quiet

–status

–strict

-w

Answer 3

–ignore-missing, Don’t fail or report status for missing files.

–quiet, Don’t print OK for each successfully verified file.

–status, Don’t output anything, status code shows success.

–strict, Exit non-zero for improperly formatted checksum lines.

-w, –warn, Warn about improperly formatted checksum lines.