diff --git a/Documentation/NuttShell.html b/Documentation/NuttShell.html
index c23950484c..6095357a5c 100644
--- a/Documentation/NuttShell.html
+++ b/Documentation/NuttShell.html
@@ -8,7 +8,7 @@
   <tr align="center" bgcolor="#e4e4e4">
     <td>
       <h1><big><font color="#3c34ec"><i>NuttShell (NSH)</i></font></big></h1>
-      <p>Last Updated: January 10, 2018</p>
+      <p>Last Updated: January 12, 2018</p>
     </td>
   </tr>
 </table>
@@ -251,259 +251,265 @@
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdkill">2.28 Send a signal to a task (kill)</a>
+    <a href="#cmdirqinfo">2.28 Show Interrupt Status (irqinfo)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdlosetup">2.29 Setup/teardown the Loop Device (losetup)</a>
+    <a href="#cmdkill">2.29 Send a signal to a task (kill)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdln">2.30 List to a File or Directory (ln)</a>
+    <a href="#cmdlosetup">2.30 Setup/teardown the Loop Device (losetup)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdls">2.31 List Directory Contents (ls)</a>
+    <a href="#cmdln">2.31 List to a File or Directory (ln)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdlsmod">2.32 Show information about installed OS modules (lsmod)</a>
+    <a href="#cmdls">2.32 List Directory Contents (ls)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmd5">2.33 Calculate MD5 (md5)</a>
+    <a href="#cmdlsmod">2.33 Show information about installed OS modules (lsmod)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmbhw">2.34 Access Memory (mb, mh, and mw)</a>
+    <a href="#cmdmd5">2.34 Calculate MD5 (md5)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdps">2.35 Show Current Tasks and Threads (ps)</a>
+    <a href="#cmdmbhw">2.35 Access Memory (mb, mh, and mw)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmkdir">2.36 Create a Directory (mkdir)</a>
+    <a href="#cmdps">2.36 Show Current Tasks and Threads (ps)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmkfatfs">2.37 Create a FAT File System (mkfatfs)</a>
+    <a href="#cmdmkdir">2.37 Create a Directory (mkdir)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmkfifo">2.38 Create a FIFO (mkfifo)</a>
+    <a href="#cmdmkfatfs">2.38 Create a FAT File System (mkfatfs)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmkrd">2.39 Create a RAMDISK (mkrd)</a>
+    <a href="#cmdmkfifo">2.39 Create a FIFO (mkfifo)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmount">2.40 Mount a File System (mount)</a>
+    <a href="#cmdmkrd">2.40 Create a RAMDISK (mkrd)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdmv">2.41 Rename a File (mv)</a>
+    <a href="#cmdmount">2.41 Mount a File System (mount)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdnfsmount">2.42 Mount an NFS File System (nfsmount)</a>
+    <a href="#cmdmv">2.42 Rename a File (mv)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdnslookup">2.43 Lookup a network address (nslookup)</a>
+    <a href="#cmdnfsmount">2.43 Mount an NFS File System (nfsmount)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdpasswd">2.44 Change a User's Password (passwd)</a>
+    <a href="#cmdnslookup">2.44 Lookup a network address (nslookup)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdpoweroff">2.45 Shut the system down (poweroff)</a>
+    <a href="#cmdpasswd">2.45 Change a User's Password (passwd)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdput">2.46 Send File Via TFTP (put)</a>
+    <a href="#cmdpoweroff">2.46 Shut the system down (poweroff)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdpwd">2.47 Show Current Working Directory (pwd)</a>
+    <a href="#cmdput">2.47 Send File Via TFTP (put)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdreadlink">2.48 Show target of a link (readlink)</a>
+    <a href="#cmdpwd">2.48 Show Current Working Directory (pwd)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdreboot">2.49 Reset and reboot the system (reboot)</a>
+    <a href="#cmdreadlink">2.49 Show target of a link (readlink)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdrm">2.50 Remove a File (rm)</a>
+    <a href="#cmdreboot">2.50 Reset and reboot the system (reboot)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdrmdir">2.51 Remove a Directory (rmdir)</a>
+    <a href="#cmdrm">2.51 Remove a File (rm)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdrmmod">2.52 Remove on OS Module (rmmod)</a>
+    <a href="#cmdrmdir">2.52 Remove a Directory (rmdir)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdroute">2.53 Show routing table (route)</a>
+    <a href="#cmdrmmod">2.53 Remove on OS Module (rmmod)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdset">2.54 Set an Environment Variable (set)</a>
+    <a href="#cmdroute">2.54 Show routing table (route)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdsh">2.55 Execute an NSH Script (sh)</a>
+    <a href="#cmdset">2.55 Set an Environment Variable (set)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdshutdown">2.56 Shut the system down (shutdown)</a>
+    <a href="#cmdsh">2.56 Execute an NSH Script (sh)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdsleep">2.57 Wait for Seconds (sleep)</a>
+    <a href="#cmdshutdown">2.57 Shut the system down (shutdown)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdtelnetd">2.58 Start the Telnet Daemon (telnetd)</a>
+    <a href="#cmdsleep">2.58 Wait for Seconds (sleep)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdtime">2.59 Time execution of another command (time)</a>
+    <a href="#cmdtelnetd">2.59 Start the Telnet Daemon (telnetd)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdtruncate">2.60 Set the Size of a File (truncate)</a>
+    <a href="#cmdtime">2.60 Time execution of another command (time)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdunmount">2.61 Unmount a File System (umount)</a>
+    <a href="#cmdtruncate">2.61 Set the Size of a File (truncate)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmduname">2.62 Print system information (uname)</a>
+    <a href="#cmdunmount">2.62 Unmount a File System (umount)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdunset">2.63 Unset an Environment Variable (unset)</a>
+    <a href="#cmduname">2.63 Print system information (uname)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdurldec">2.64 URL Decode (urldecode)</a>
+    <a href="#cmdunset">2.64 Unset an Environment Variable (unset)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdurlencode">2.65 URL Encode (urlencode)</a>
+    <a href="#cmdurldec">2.65 URL Decode (urldecode)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmduseradd">2.66 Add a New User (useradd)</a>
+    <a href="#cmdurlencode">2.66 URL Encode (urlencode)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmduserdel">2.67 Delete a user (userdel)</a>
+    <a href="#cmduseradd">2.67 Add a New User (useradd)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdusleep">2.68 Wait for Microseconds (usleep)</a>
+    <a href="#cmduserdel">2.68 Delete a user (userdel)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdwget">2.69 Get File Via HTTP (wget)</a>
+    <a href="#cmdusleep">2.69 Wait for Microseconds (usleep)</a>
   </td>
 </tr>
 <tr>
   <td><br></td>
   <td>
-    <a href="#cmdxd">2.70 Hexadecimal Dump of Memory (xd)</a>
+    <a href="#cmdwget">2.70 Get File Via HTTP (wget)</a>
+  </td>
+</tr>
+<tr>
+  <td><br></td>
+  <td>
+    <a href="#cmdxd">2.71 Hexadecimal Dump of Memory (xd)</a>
   </td>
 </tr>
 <tr>
@@ -1941,7 +1947,34 @@ mydriver         20404659 20404625        0 20404580      552 204047a8        0
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdkill"><h2>2.28 Send a signal to a task (kill)</h2></a>
+    <a name="cmdirqinfo"><h2>2.28 Show Interrupt Status (irqinfo)</h2></a>
+  </td>
+  </tr>
+</table>
+
+<p><b>Command Syntax:</b></p>
+<ul><pre>
+irqinfo
+</pre></ul>
+<p>
+  <b>Synopsis</b>.
+  Show the current count of interrupts taken on all attached interrupts.
+</p>
+<p>
+  <b>Example:</b>.
+</p>
+<ul><pre>
+nsh> irqinfo
+IRQ HANDLER  ARGUMENT    COUNT    RATE
+  3 00001b3d 00000000        156   19.122
+ 15 0000800d 00000000        817  100.000
+ 30 00000fd5 20000018         20    2.490
+</pre></ul>
+
+<table width ="100%">
+  <tr bgcolor="#e4e4e4">
+  <td>
+    <a name="cmdkill"><h2>2.29 Send a signal to a task (kill)</h2></a>
   </td>
   </tr>
 </table>
@@ -1983,7 +2016,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdlosetup"><h2>2.29 Setup/teardown the Loop Device (losetup)</h2></a>
+    <a name="cmdlosetup"><h2>2.30 Setup/teardown the Loop Device (losetup)</h2></a>
   </td>
   </tr>
 </table>
@@ -2036,7 +2069,7 @@ losetup d &lt;dev-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdln"><h2>2.30 Link to a File or Directory (ln)</h2></a>
+    <a name="cmdln"><h2>2.31 Link to a File or Directory (ln)</h2></a>
   </td>
   </tr>
 </table>
@@ -2061,7 +2094,7 @@ ln [-s] &lt;target&gt; &lt;link&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdls"><h2>2.31 List Directory Contents (ls)</h2></a>
+    <a name="cmdls"><h2>2.32 List Directory Contents (ls)</h2></a>
   </td>
   </tr>
 </table>
@@ -2099,7 +2132,7 @@ ls [-lRs] &lt;dir-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdlsmod"><h2>2.32 Show information about installed OS modules (lsmod)</h2></a>
+    <a name="cmdlsmod"><h2>2.33 Show information about installed OS modules (lsmod)</h2></a>
   </td>
   </tr>
 </table>
@@ -2132,7 +2165,7 @@ mydriver         20404659 20404625        0 20404580      552 204047a8        0
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmd5"><h2>2.33 Calculate MD5 (md5)</h2></a>
+    <a name="cmdmd5"><h2>2.34 Calculate MD5 (md5)</h2></a>
   </td>
   </tr>
 </table>
@@ -2149,7 +2182,7 @@ md5 [-f] &lt;string or filepath&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmbhw"><h2>2.34 Access Memory (mb, mh, and mw)</h2></a>
+    <a name="cmdmbhw"><h2>2.35 Access Memory (mb, mh, and mw)</h2></a>
   </td>
   </tr>
 </table>
@@ -2202,7 +2235,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdps"><h2>2.35 Show Current Tasks and Threads (ps)</h2></a>
+    <a name="cmdps"><h2>2.36 Show Current Tasks and Threads (ps)</h2></a>
   </td>
   </tr>
 </table>
@@ -2236,7 +2269,7 @@ nsh&gt; mount -t procfs /proc
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmkdir"><h2>2.36 Create a Directory (mkdir)</h2></a>
+    <a name="cmdmkdir"><h2>2.37 Create a Directory (mkdir)</h2></a>
   </td>
 </tr>
 </table>
@@ -2271,7 +2304,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmkfatfs"><h2>2.37 Create a FAT File System (mkfatfs)</h2></a>
+    <a name="cmdmkfatfs"><h2>2.38 Create a FAT File System (mkfatfs)</h2></a>
   </td>
 </tr>
 </table>
@@ -2296,7 +2329,7 @@ mkfatfs [-F &lt;fatsize&gt;] &lt;block-driver&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmkfifo"><h2>2.38 Create a FIFO (mkfifo)</h2></a>
+    <a name="cmdmkfifo"><h2>2.39 Create a FIFO (mkfifo)</h2></a>
   </td>
 </tr>
 </table>
@@ -2334,7 +2367,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmkrd"><h2>2.39 Create a RAMDISK (mkrd)</h2></a>
+    <a name="cmdmkrd"><h2>2.40 Create a RAMDISK (mkrd)</h2></a>
   </td>
 </tr>
 </table>
@@ -2385,7 +2418,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmount"><h2>2.40 Mount a File System (mount)</h2></a>
+    <a name="cmdmount"><h2>2.41 Mount a File System (mount)</h2></a>
   </td>
 </tr>
 </table>
@@ -2464,7 +2497,7 @@ nsh&gt; mount
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdmv"><h2>2.41 Rename a File (mv)</h2></a>
+    <a name="cmdmv"><h2>2.42 Rename a File (mv)</h2></a>
   </td>
   </tr>
 </table>
@@ -2482,7 +2515,7 @@ mv &lt;old-path&gt; &lt;new-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdnfsmount"><h2>2.42 Mount an NFS file system (nfsmount)</h2></a>
+    <a name="cmdnfsmount"><h2>2.43 Mount an NFS file system (nfsmount)</h2></a>
   </td>
   </tr>
 </table>
@@ -2501,7 +2534,7 @@ nfsmount &lt;server-address&gt; &lt;mount-point&gt; &lt;remote-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdnslookup"><h2>2.43 Lookup a network address (nslookup)</h2></a>
+    <a name="cmdnslookup"><h2>2.44 Lookup a network address (nslookup)</h2></a>
   </td>
   </tr>
 </table>
@@ -2518,7 +2551,7 @@ nslookup &lt;host-name&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdpasswd"><h2>2.44 Change a User's Password (passwd)</h2></a>
+    <a name="cmdpasswd"><h2>2.45 Change a User's Password (passwd)</h2></a>
   </td>
   </tr>
 </table>
@@ -2535,7 +2568,7 @@ passwd &lt;username&gt; &lt;password&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdpoweroff"><h2>2.45 Shut the system down (poweroff)</h2></a>
+    <a name="cmdpoweroff"><h2>2.46 Shut the system down (poweroff)</h2></a>
   </td>
   </tr>
 </table>
@@ -2557,7 +2590,7 @@ poweroff
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdput"><h2>2.46 Send File Via TFTP (put)</h2></a>
+    <a name="cmdput"><h2>2.47 Send File Via TFTP (put)</h2></a>
   </td>
   </tr>
 </table>
@@ -2592,7 +2625,7 @@ put [-b|-n] [-f &lt;remote-path&gt;] -h &lt;ip-address&gt; &lt;local-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdpwd"><h2>2.47 Show Current Working Directory (pwd)</h2></a>
+    <a name="cmdpwd"><h2>2.48 Show Current Working Directory (pwd)</h2></a>
   </td>
   </tr>
 </table>
@@ -2622,7 +2655,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdreadlink"><h2>2.48 Show target of a link (readlink)</h2></a>
+    <a name="cmdreadlink"><h2>2.49 Show target of a link (readlink)</h2></a>
   </td>
   </tr>
 </table>
@@ -2639,7 +2672,7 @@ readlink &lt;link&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdreboot"><h2>2.49 Reboot the system (reboot)</h2></a>
+    <a name="cmdreboot"><h2>2.50 Reboot the system (reboot)</h2></a>
   </td>
   </tr>
 </table>
@@ -2660,7 +2693,7 @@ reboot
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdrm"><h2>2.50 Remove a File (rm)</h2></a>
+    <a name="cmdrm"><h2>2.51 Remove a File (rm)</h2></a>
   </td>
 </tr>
 </table>
@@ -2694,7 +2727,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdrmdir"><h2>2.51 Remove a Directory (rmdir)</h2></a>
+    <a name="cmdrmdir"><h2>2.52 Remove a Directory (rmdir)</h2></a>
   </td>
 </tr>
 </table>
@@ -2729,7 +2762,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdrmmod"><h2>2.52 Remove on OS Module (rmmod)</h2></a>
+    <a name="cmdrmmod"><h2>2.53 Remove on OS Module (rmmod)</h2></a>
   </td>
 </tr>
 </table>
@@ -2757,7 +2790,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdroute"><h2>2.53 Show routing table (route)</h2></a>
+    <a name="cmdroute"><h2>2.54 Show routing table (route)</h2></a>
   </td>
   </tr>
 </table>
@@ -2777,7 +2810,7 @@ route ipv4|ipv6
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdset"><h2>2.54 Set an Environment Variable (set)</h2></a>
+    <a name="cmdset"><h2>2.55 Set an Environment Variable (set)</h2></a>
   </td>
   </tr>
 </table>
@@ -2846,7 +2879,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdsh"><h2>2.55 Execute an NSH Script (sh)</h2></a>
+    <a name="cmdsh"><h2>2.56 Execute an NSH Script (sh)</h2></a>
   </td>
   </tr>
 </table>
@@ -2864,7 +2897,7 @@ sh &lt;script-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdshutdown"><h2>2.56 Shut the system down (shutdown)</h2></a>
+    <a name="cmdshutdown"><h2>2.57 Shut the system down (shutdown)</h2></a>
   </td>
   </tr>
 </table>
@@ -2885,7 +2918,7 @@ shutdown [--reboot]
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdsleep"><h2>2.57 Wait for Seconds (sleep)</h2></a>
+    <a name="cmdsleep"><h2>2.58 Wait for Seconds (sleep)</h2></a>
   </td>
   </tr>
 </table>
@@ -2902,7 +2935,7 @@ sleep &lt;sec&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdtelnetd"><h2>2.58 Time Start the Telnet Daemon (telnetd)</h2></a>
+    <a name="cmdtelnetd"><h2>2.59 Time Start the Telnet Daemon (telnetd)</h2></a>
   </td>
 </tr>
 </table>
@@ -2928,7 +2961,7 @@ telnetd
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdtime"><h2>2.59 Time execution of another command (time)</h2></a>
+    <a name="cmdtime"><h2>2.60 Time execution of another command (time)</h2></a>
   </td>
 </tr>
 </table>
@@ -2986,7 +3019,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdtruncate"><h2>2.60 Set the Size of a File (truncate)</h2></a>
+    <a name="cmdtruncate"><h2>2.61 Set the Size of a File (truncate)</h2></a>
   </td>
 </tr>
 </table>
@@ -3014,7 +3047,7 @@ truncate -s &lt;length&gt; &lt;file-path&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdunmount"><h2>2.61 Unmount a File System (umount)</h2></a>
+    <a name="cmdunmount"><h2>2.62 Unmount a File System (umount)</h2></a>
   </td>
 </tr>
 </table>
@@ -3044,7 +3077,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmduname"><h2>2.62 Print system information (uname)</h2></a>
+    <a name="cmduname"><h2>2.63 Print system information (uname)</h2></a>
   </td>
   </tr>
 </table>
@@ -3111,7 +3144,7 @@ uname [-a | -imnoprsv]
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdunset"><h2>2.63 Unset an Environment Variable (unset)</h2></a>
+    <a name="cmdunset"><h2>2.64 Unset an Environment Variable (unset)</h2></a>
   </td>
   </tr>
 </table>
@@ -3137,7 +3170,7 @@ nsh&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdurldec"><h2>2.64 URL Decode (urldecode)</h2></a>
+    <a name="cmdurldec"><h2>2.65 URL Decode (urldecode)</h2></a>
   </td>
   </tr>
 </table>
@@ -3154,7 +3187,7 @@ urldecode [-f] &lt;string or filepath&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdurlencode"><h2>2.65 URL Encode (urlencode)</h2></a>
+    <a name="cmdurlencode"><h2>2.66 URL Encode (urlencode)</h2></a>
   </td>
   </tr>
 </table>
@@ -3171,7 +3204,7 @@ urlencode [-f] &lt;string or filepath&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmduseradd"><h2>2.66 Add a New User (useradd)</h2></a>
+    <a name="cmduseradd"><h2>2.67 Add a New User (useradd)</h2></a>
   </td>
   </tr>
 </table>
@@ -3188,7 +3221,7 @@ useradd &lt;username&gt; &lt;password&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmduserdel"><h2>2.67 Delete a user (userdel)</h2></a>
+    <a name="cmduserdel"><h2>2.68 Delete a user (userdel)</h2></a>
   </td>
   </tr>
 </table>
@@ -3205,7 +3238,7 @@ userdel &lt;username&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdusleep"><h2>2.68 Wait for Microseconds (usleep)</h2></a>
+    <a name="cmdusleep"><h2>2.69 Wait for Microseconds (usleep)</h2></a>
   </td>
   </tr>
 </table>
@@ -3222,7 +3255,7 @@ usleep &lt;usec&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdwget"><h2>2.69 Get File Via HTTP (wget)</h2></a>
+    <a name="cmdwget"><h2>2.70 Get File Via HTTP (wget)</h2></a>
   </td>
   </tr>
 </table>
@@ -3249,7 +3282,7 @@ wget [-o &lt;local-path&gt;] &lt;url&gt;
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
   <td>
-    <a name="cmdxd"><h2>2.70 Hexadecimal Dump of Memory (xd)</h2></a>
+    <a name="cmdxd"><h2>2.71 Hexadecimal Dump of Memory (xd)</h2></a>
   </td>
   </tr>
 </table>
@@ -3506,6 +3539,11 @@ nsh&gt;
     <td><code>CONFIG_MODULE</code></td>
     <td><code>CONFIG_NSH_DISABLE_MODCMDS</code></td>
   </tr>
+  <tr>
+    <td><b><code>irqinfo</code></b></td>
+    <td>!<code>CONFIG_DISABLE_MOUNTPOINT</code> &amp;&amp; <code>CONFIG_FS_PROCFS</code> &amp;&amp; <code>CONFIG_SCHED_IRQMONITOR</code></td>
+    <td><br></td>
+  </tr>
   <tr>
     <td><b><code>kill</code></b></td>
     <td>!<code>CONFIG_DISABLE_SIGNALS</code></td>
@@ -5486,10 +5524,10 @@ xxd -i romfs_img >nsh_romfsimg.h
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_ROMFSMOUNTPT</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_ROMFSSECTSIZE</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_STRERROR</code></a></li>
+  <li><a href="#nshconfiguration"><code>CONFIG_NSH_TELNET</code></a></li>
 </ul></td>
 <td width="33%" valign="top">
 <ul>
-  <li><a href="#nshconfiguration"><code>CONFIG_NSH_TELNET</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_TMPDIR</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_USBCONDEV</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_USBCONSOLE</code></a></li>
@@ -5535,6 +5573,7 @@ xxd -i romfs_img >nsh_romfsimg.h
   <li><a href="#cmdifup"><code>ifup</code></a></li>
   <li><a href="#custonshlib">Initialization sequence</a></li>
   <li><a href="#cmdinsmod"><code>insmod</code></a></li>
+  <li><a href="#cmdirqinfo"><code>irqinfo</code></a></li>
   <li><a href="#cmdkill"><code>kill</code></a></li>
   <li><a href="#cmdlosetup"><code>losetup</code></a></li>
   <li><a href="#cmdln"><code>ln</code></a></li>
@@ -5555,10 +5594,10 @@ xxd -i romfs_img >nsh_romfsimg.h
   <li><a href="#cmdmv"><code>mv</code></a></li>
   <li><a href="#cmdnfsmount"><code>nfsmount</code></a></li>
   <li><a href="#cmdoverview"><code>nice</code></a></li>
+  <li><a href="#custonshlib">NSH library (<code>nshlib</code>)</a></li>
 </ul></td>
 <td width="34%" valign="top">
 <ul>
-  <li><a href="#custonshlib">NSH library (<code>nshlib</code>)</a></li>
   <li><a href="#nshlibrary">NSH library (<code>nshlib</code>)</a></li>
   <li><a href="#custonshlib"><code>nsh_consolemain()</code></a></li>
   <li><a href="#custonshlib"><code>nsh_initialize()</code></a></li>