| .Dd 2015-10-08 | |
| .Dt SHA256SUM 1 | |
| .Os sbase | |
| .Sh NAME | |
| .Nm sha256sum | |
| .Nd compute or check SHA-256 message digests | |
| .Sh SYNOPSIS | |
| .Nm | |
| .Op Fl c | |
| .Op Ar file ... | |
| .Sh DESCRIPTION | |
| .Nm | |
| writes SHA-256 (256-bit) checksums of each | |
| .Ar file | |
| to stdout. | |
| If no | |
| .Ar file | |
| is given | |
| .Nm | |
| reads from stdin. | |
| .Sh OPTIONS | |
| .Bl -tag -width Ds | |
| .It Fl c | |
| Read list of SHA-256 checksums from each | |
| .Ar file | |
| and check them. | |
| If no | |
| .Ar file | |
| is given | |
| .Nm | |
| reads from stdin. | |
| .El |