diff --git a/cmd/dot/dot.1 b/cmd/dot/dot.1
index 986b262..e9c56f2 100644
--- a/cmd/dot/dot.1
+++ b/cmd/dot/dot.1
@@ -352,7 +352,7 @@ in the layout.
 layout the graph.
 .PP
 \fBstart=\fIval\fR. Adjusts the random initial placement of nodes
-with no specified position.  If \fIval\fP is is an integer,
+with no specified position.  If \fIval\fP is an integer,
 it is used as the seed for the random number generator.
 If \fIval\fP is not an integer, a random system\(hygenerated integer,
 such as the process ID or current time, is used as the seed.
@@ -635,6 +635,22 @@ As usual, edge layout is guided by the \fBsplines\fR attribute.
 .PP
 \fB\-y\fR invert y coordinate in output.
 .PP
+\fB\-o\fIfile\fR write output to \fIfile\fP.
+.PP
+\fB\-x\fP reduce graph.
+.PP
+\fB\-Lg\fP don't use grid.
+.PP
+\fB\-LO\fP use old attractive force.
+.PP
+\fB\-Ln\fIi\fR set number of iterations to \fIi\fP.
+.PP
+\fB\-LU\fIi\fR set unscaled factor to \fIi\fP.
+.PP
+\fB\-LC\fIv\fR set overlap expansion factor to \fIv\fP.
+.PP
+\fB\-LT\fR[*]\fIv\fR set temperature (temperature factor) to \fIv\fP.
+.PP
 \fB\-V\fP (version) prints version information and exits.
 .PP
 \fB\-?\fP prints the usage and exits.
diff --git a/cmd/dot/osage.1 b/cmd/dot/osage.1
index 0efbf90..5eded8b 100644
--- a/cmd/dot/osage.1
+++ b/cmd/dot/osage.1
@@ -404,6 +404,22 @@ If \fB\-l\fP is given by itself, the standard library is omitted.
 .PP
 \fB\-O\fP automatically generate output filenames based on the input filename and the \-T format.
 .PP
+\fB\-o\fIfile\fR write output to \fIfile\fP.
+.PP
+\fB\-x\fP reduce graph.
+.PP
+\fB\-Lg\fP don't use grid.
+.PP
+\fB\-LO\fP use old attractive force.
+.PP
+\fB\-Ln\fIi\fR set number of iterations to \fIi\fP.
+.PP
+\fB\-LU\fIi\fR set unscaled factor to \fIi\fP.
+.PP
+\fB\-LC\fIv\fR set overlap expansion factor to \fIv\fP.
+.PP
+\fB\-LT\fR[*]\fIv\fR set temperature (temperature factor) to \fIv\fP.
+.PP
 \fB\-v\fP (verbose) prints various information useful for debugging.
 .PP
 \fB\-V\fP (version) prints version information and exits.
diff --git a/cmd/dot/patchwork.1 b/cmd/dot/patchwork.1
index 7fe68fb..852f516 100644
--- a/cmd/dot/patchwork.1
+++ b/cmd/dot/patchwork.1
@@ -398,6 +398,22 @@ If \fB\-l\fP is given by itself, the standard library is omitted.
 .PP
 \fB\-O\fP automatically generate output filenames based on the input filename and the \-T format.
 .PP
+\fB\-o\fIfile\fR write output to \fIfile\fP.
+.PP
+\fB\-x\fP reduce graph.
+.PP
+\fB\-Lg\fP don't use grid.
+.PP
+\fB\-LO\fP use old attractive force.
+.PP
+\fB\-Ln\fIi\fR set number of iterations to \fIi\fP.
+.PP
+\fB\-LU\fIi\fR set unscaled factor to \fIi\fP.
+.PP
+\fB\-LC\fIv\fR set overlap expansion factor to \fIv\fP.
+.PP
+\fB\-LT\fR[*]\fIv\fR set temperature (temperature factor) to \fIv\fP.
+.PP
 \fB\-v\fP (verbose) prints various information useful for debugging.
 .PP
 \fB\-V\fP (version) prints version information and exits.
diff --git a/cmd/gvmap/cluster.1 b/cmd/gvmap/cluster.1
index 15b0332..188dcd6 100644
--- a/cmd/gvmap/cluster.1
+++ b/cmd/gvmap/cluster.1
@@ -51,6 +51,9 @@ Specifies that output should go into the file \fIoutfile\fP. By default,
 .TP
 .BI \-v 
 Verbose mode.
+.TP
+.BI \-?
+Prints the usage and exits.
 .SH EXAMPLES
 .PP
 Applying 
diff --git a/cmd/tools/unflatten.1 b/cmd/tools/unflatten.1
index 7857cf0..089496f 100644
--- a/cmd/tools/unflatten.1
+++ b/cmd/tools/unflatten.1
@@ -3,7 +3,7 @@
 unflatten \- adjust directed graphs to improve layout aspect ratio
 .SH SYNOPSIS
 .B unflatten
-[\fB\-f\fR]
+[\fB\-f?\fR]
 [\fB\-l\fIlen\fR]
 [\fB\-c\fIlen\fR
 ] [
@@ -41,6 +41,9 @@ Form disconnected nodes into chains of up to \fIlen\fP nodes.
 .BI \-o " outfile"
 causes the output to be written to the specified file; by default,
 output is written to \fBstdout\fP.
+.TP
+.BI \-?
+Prints the usage and exits.
 .SH OPERANDS
 The following operand is supported:
 .TP 8