diff --git a/Makefile b/Makefile
index 35a68b2..4658a1a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
-CMD = blink bsearch G histogram upsidedown tracefile timestamp rand rclean rrm goodpasswd gitnext pdfman puniq ramusage ramusage
+CMD = blink bsearch G gitundo histogram upsidedown tracefile timestamp rand rclean rrm goodpasswd gitnext pdfman puniq ramusage ramusage
 
-all: blink/blink.1 bsearch/bsearch.1 G/G.1 goodpasswd/goodpasswd.1 histogram/histogram.1 puniq/puniq.1 rand/rand.1 rrm/rrm.1 timestamp/timestamp.1 tracefile/tracefile.1 upsidedown/upsidedown.1 wssh/wssh.1
+all: blink/blink.1 bsearch/bsearch.1 G/G.1 gitnext/gitnext.1 gitundo/gitundo.1 goodpasswd/goodpasswd.1 histogram/histogram.1 neno/neno.1 pdfman/pdfman.1 puniq/puniq.1 rand/rand.1 rrm/rrm.1 timestamp/timestamp.1 tracefile/tracefile.1 upsidedown/upsidedown.1 wssh/wssh.1
 
 %.1: %
 	pod2man $< > $@
diff --git a/README b/README
index 96988d3..d91322d 100644
--- a/README
+++ b/README
@@ -14,10 +14,14 @@ G - short hand for multi level grep.
 
 gitnext - Checkout next revision. Opposite of 'checkout HEAD^'.
 
+gitundo - Undo last commit.
+
 neno - No error no output. Only print STDERR and STDOUT if the command fails.
 
 puniq - Print unique lines the first time they are seen.
 
+pdfman - Convert man page to pdf and display it using evince.
+
 rand - Generate (pseudo-)random data
 
 rclean - Remove files with MD5 sums recorded by rrm (see below).
diff --git a/gitnext/gitnext b/gitnext/gitnext
index dcf9ccd..e63c661 100755
--- a/gitnext/gitnext
+++ b/gitnext/gitnext
@@ -1,6 +1,64 @@
 #!/bin/bash
 
-# Checkout next revision
-# Opposite of 'checkout HEAD^'
+: <<=cut
+=pod
+
+=head1 NAME
+
+gitnext - Checkout next git revision
+
+
+=head1 SYNOPSIS
+
+gitnext
+
+
+=head1 DESCRIPTION
+
+B<gitnext> does the opposite of B<git checkout HEAD^>. So instead of
+stepping backwards in time, it steps forwards.
+
+
+=head1 EXAMPLE
+
+Go to next revision
+
+  gitnext
+
+=head1 AUTHOR
+
+Copyright (C) 2017 Ole Tange,
+http://ole.tange.dk and Free Software Foundation, Inc.
+
+
+=head1 LICENSE
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3 of the License, or
+at your option any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+=head1 DEPENDENCIES
+
+B<gitnext> uses B<git>.
+
+
+=head1 SEE ALSO
+
+B<git>
+
+
+=cut
 
 git checkout $(git log --reverse --ancestry-path HEAD..master|head -n 1|field 2)
diff --git a/neno/neno b/neno/neno
index 9d0d147..6b31f94 100755
--- a/neno/neno
+++ b/neno/neno
@@ -1,28 +1,67 @@
 #!/bin/bash
 
-# NAME
-#        neno - no error no output
-# 
-# SYNOPSIS
-#        neno command1 [\; command2 ...]
-# 
-# DESCRIPTION
-#        neno will print the output from both standard output and
-#        standard error if the composed command returns an error. If the
-#        composed command returns true, the output will be ignored.
-# 
-#        This is useful for cron jobs where you only want output if it
-#        failed.
-# 
-# AUTHOR
-#        Ole Tange <tange@gnu.org>
-# 
-# COPYRIGHT
-#        Copyright © 2012 Free Software Foundation, Inc.  License
-#        GPLv3+: GNU GPL version 3 or later
-#        <http://gnu.org/licenses/gpl.html>.  This is free software: you
-#        are free to change and redistribute it.  There is NO WARRANTY,
-#        to the extent permitted by law.
+: <<=cut
+=pod
+
+=head1 NAME
+
+neno - no error no output
+
+
+=head1 SYNOPSIS
+
+B<neno> I<command1> [\; I<command2> ...]
+
+
+=head1 DESCRIPTION
+
+B<neno> will print the output from both standard output and standard
+error if the composed command returns an error. If the composed
+command returns true, the output will be ignored.  This is useful for
+cron jobs where you only want output if it failed.
+
+
+=head1 EXAMPLE
+
+Give output for missing file:
+
+  neno ls /missing-file
+
+No output if file exists:
+
+  neno ls /bin/sh
+
+
+=head1 AUTHOR
+
+Copyright (C) 2017 Ole Tange,
+http://ole.tange.dk and Free Software Foundation, Inc.
+
+
+=head1 LICENSE
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3 of the License, or
+at your option any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+=head1 SEE ALSO
+
+B<man>
+
+
+=cut
 
 print() {
   cat $TMP/stdout >&3