.TH SHA512SUM 1 sbase\-VERSION .SH NAME sha512sum \- compute SHA512 message digest .SH SYNOPSIS .B sha512sum .RB [\-c] .RI [ file ...] .TP .B \-c read list of SHA512 checksums from file and check them .SH DESCRIPTION Print SHA512 (512-bit) checksums. With no file, read standard input.