+.
+.IP "\fBwait\-until \fItable record \fR[\fIcolumn\fR[\fB:\fIkey\fR]\fB=\fIvalue\fR]..."
+Waits until \fItable\fR contains a record named \fIrecord\fR whose
+\fIcolumn\fR equals \fIvalue\fR or, if \fIkey\fR is specified, whose
+\fIcolumn\fR contains a \fIkey\fR with the specified \fIvalue\fR. Any
+of the operators \fB!=\fR, \fB<\fR, \fB>\fR, \fB<=\fR, or \fB>=\fR may
+be substituted for \fB=\fR to test for inequality, less than, greater
+than, less than or equal to, or greater than or equal to,
+respectively. (Don't forget to escape \fB<\fR or \fB>\fR from
+interpretation by the shell.)
+.IP
+If no \fIcolumn\fR[\fB:\fIkey\fR]\fB=\fIvalue\fR arguments are given,
+this command waits only until \fIrecord\fR exists. If more than one
+such argument is given, the command waits until all of them are
+satisfied.