Linux sha224sum command

Updated: 07/12/2017 by Computer Hope

About sha224sum

The sha224sum command computes and checks a SHA224 message digest.

Description

Print or check SHA224 (224-bit) checksums. With no FILE, or when FILE is -, read standard input.

sha224sum syntax

sha224sum [OPTION]... [FILE]...

Options

-b, --binary Read in binary mode.
-c, --check Read SHA224 sums from the FILEs and check them.
--tag Create a BSD-style checksum.
-t, --text Read in text mode (default).

Note: There is no difference between binary and text mode option on GNU system.

The following four options are useful only when verifying checksums:

--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.
--help Display this help and exit.
--version Output version information and exit.

The sums are computed as described in RFC 3874. When checking, the input should be a former output of this program. The default mode is to print a line with checksum, a character indicating input mode ('*' for binary, space for text), and name for each FILE.

sha224sum examples

sha224sum example.iso

Running the above command would give the SHA224 checksum of the example.iso file in the current directory. Below is an example of how the output may appear with the full SHA224 checksum followed by the file name.

d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f example.iso

md5sum — Checks the MD5 message digest.
sha256sum — Checks the SHA256 message digest.
sha384sum — Checks the SHA384 message digest.
sha512sum — Checks the SHA512 message digest.