.ftr C B
.TH "MU VERIFY" "1" 

.SH "NAME"
.PP
mu-verify - verify message signatures and display information about them

.SH "SYNOPSIS"
.PP
\fBmu [common-options] verify [options] [<file> ... ]\fP

.SH "DESCRIPTION"
.PP
\fBmu verify\fP is the \fBmu\fP command for verifying message signatures (such as PGP/GPG
signatures) and displaying information about them. The sub-command works on
message files, and does not require the message to be indexed in the database.

.PP
If no message file is provided, the command expects the message on
standard-input.

.SH "VERIFY OPTIONS"
.SS "-r, --auto-retrieve"
.PP
attempt to find keys online (see the \fBauto-key-retrieve\fP option in the \fBgnupg(1)\fP
documentation).

.SS "decrypt"
.PP
attempt to decrypt the message

.SH "COMMON OPTIONS"
.SS "-d, --debug"
.PP
makes mu generate extra debug information, useful for debugging the program
itself. By default, debug information goes to the log file, ~/.cache/mu/mu.log.
It can safely be deleted when mu is not running. When running with --debug
option, the log file can grow rather quickly. See the note on logging below.

.SS "-q, --quiet"
.PP
causes mu not to output informational messages and progress information to
standard output, but only to the log file. Error messages will still be sent to
standard error. Note that mu index is much faster with --quiet, so it is
recommended you use this option when using mu from scripts etc.

.SS "--log-stderr"
.PP
causes mu to not output log messages to standard error, in addition to sending
them to the log file.

.SS "--nocolor"
.PP
do not use ANSI colors. The environment variable \fCNO_COLOR\fP can be used as an
alternative to \fC\-\-nocolor\fP.

.SS "-V, --version"
.PP
prints mu version and copyright information.

.SS "-h, --help"
.PP
lists the various command line options.

.SH "EXAMPLES"
.PP
To display aggregated (one-line) information about the verification status in a
message:
.RS
.nf
$ mu verify msgfile

.fi
.RE

.PP
To display information about all the signatures:
.RS
.nf
$ mu verify --verbose msgfile

.fi
.RE

.PP
If you only want to use the exit code, you can use:
.RS
.nf
$ mu verify --quiet msgfile

.fi
.RE
.PP
which does not give any output unless there is an error.

.SH "REPORTING BUGS"
.PP
Please report bugs at \fIhttps://github.com/djcb/mu/issues\fP.

.SH "AUTHOR"
.PP
Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>

.SH "COPYRIGHT"
.PP
This manpage is part of \fCmu\fP 1.12.3.

.PP
Copyright © 2008-2024 Dirk-Jan C. Binnema. License GPLv3+: GNU GPL version 3
or later \fIhttps://gnu.org/licenses/gpl.html\fP. This is free software: you are
free to change and redistribute it. There is NO WARRANTY, to the extent
permitted by law.

.SH "SEE ALSO"
.PP
\fBmu(1)\fP