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.Dd October 8, 2015
.Dt SHA512SUM 1
.Os sbase
.Sh NAME
.Nm sha512sum
.Nd compute or check SHA-512 message digests
.Sh SYNOPSIS
.Nm
.Op Fl c
.Op Ar file ...
.Sh DESCRIPTION
.Nm
writes SHA-512 (512-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-512 checksums from each
.Ar file
and check them.
If no
.Ar file
is given
.Nm
reads from stdin.
.El
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