sha224sum (1)

Quick Reference

Calculate SHA224 cryptographic checksums.

  • Calculate the SHA224 checksum for a file:

sha224sum {{filename1}}

  • Calculate SHA224 checksums for multiple files:

sha224sum {{filename1}} {{filename2}}

  • Read a file of SHA224 sums and verify all files have matching checksums:

sha224sum -c {{filename.sha224}}


sha224sum - compute and check SHA224 message digest


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


Print or check SHA224 (224-bit) checksums.
With no FILE, or when FILE is -, read standard input.
-b, --binary
read in binary mode
-c, --check
read SHA224 sums from the FILEs and check them
create a BSD-style checksum
-t, --text
read in text mode (default)

The following five options are useful only when verifying checksums:

don't fail or report status for missing files
don't print OK for each successfully verified file
don't output anything, status code shows success
exit non-zero for improperly formatted checksum lines
-w, --warn
warn about improperly formatted checksum lines
display this help and exit
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 space, a character indicating input mode ('*' for binary, ' ' for text or where binary is insignificant), and name for each FILE.


Written by Ulrich Drepper, Scott Miller, and David Madore.


GNU coreutils online help: <>
Report sha224sum translation bugs to <>


Full documentation at: <>
or available locally via: info '(coreutils) sha2 utilities'


GNU coreutils 8.29.13-0a854
Source updated
December 2, 2018
Page created
February 9, 2018
Page generated
December 2, 2018