Set the value associated with *secret* (specified by its UUID) to the value
Base64-encoded value *base64* or Base-64-encoded contents of file named
-*filename*. Using the *--plain* flag is together with *--file* allows to use
-the file contents directly as the secret value.
+*filename*. Using the *--plain* flag is together with *--file* allows one to
+use the file contents directly as the secret value.
If *--interactive* flag is used the secret value is read as a password from the
terminal.
form ``disk[,snapshot=type][,driver=type][,stype=type][,file=name]``.
A *diskspec* must be provided for disks backed by block devices as libvirt
doesn't auto-generate file names for those. The optional ``stype`` parameter
-allows to control the type of the source file. Supported values are 'file'
+allows one to control the type of the source file. Supported values are 'file'
(default) and 'block'. To exclude a disk from an external snapshot use
``--diskspec disk,snapshot=no``.