Add dd command to NSH

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1241 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 24 insertions, 11 deletions

diff --git a/nuttx/examples/nsh/README.txt b/nuttx/examples/nsh/README.txt
index 5be43dbc0..4b822e02e 100644
--- a/nuttx/examples/nsh/README.txt
+++ b/nuttx/examples/nsh/README.txt
@@ -250,6 +250,17 @@ o cp <source-path> <dest-path>
   Copy of the contents of the file at <source-path> to the location
   in the filesystem indicated by <path-path>
 
+o dd if=<infile> of=<outfile> [bs=<sectsize>] [count=<sectors>] [skip=<sectors>]
+
+  Copy blocks from <infile> to <outfile>.
+
+  Example:
+
+    nsh> dd if=/dev/zero of=/tmp/zeros bs=64 count=16
+    nsh> ls -l /tmp
+    /tmp:
+     -rw-rw-rw-    1024 ZEROS
+
 o echo [<string|$name> [<string|$name>...]]
 
   Copy the sequence of strings and expanded environment variables to
@@ -680,6 +691,7 @@ Command Dependencies on Configuration Settings
   cat        CONFIG_NFILE_DESCRIPTORS > 0
   cd         !CONFIG_DISABLE_ENVIRON && CONFIG_NFILE_DESCRIPTORS > 0
   cp         CONFIG_NFILE_DESCRIPTORS > 0
+  dd         CONFIG_NFILE_DESCRIPTORS > 0
   echo       --
   exec       --
   exit       --
@@ -724,17 +736,18 @@ In addition, each NSH command can be individually disabled via one of the follow
 settings.  All of these settings make the configuration of NSH potentially complex but
 also allow it to squeeze into very small memory footprints.
 
-  CONFIG_EXAMPLES_NSH_DISABLE_CAT,   CONFIG_EXAMPLES_NSH_DISABLE_CD,      CONFIG_EXAMPLES_NSH_DISABLE_CP,
-  CONFIG_EXAMPLES_NSH_DISABLE_ECHO,  CONFIG_EXAMPLES_NSH_DISABLE_EXEC,    CONFIG_EXAMPLES_NSH_DISABLE_EXIT,
-  CONFIG_EXAMPLES_NSH_DISABLE_GET,   CONFIG_EXAMPLES_NSH_DISABLE_HELP,    CONFIG_EXAMPLES_NSH_DISABLE_IFCONFIG,
-  CONFIG_EXAMPLES_NSH_DISABLE_LS,    CONFIG_EXAMPLES_NSH_DISABLE_MB,      CONFIG_EXAMPLES_NSH_DISABLE_MEM,
-  CONFIG_EXAMPLES_NSH_DISABLE_MKDIR, CONFIG_EXAMPLES_NSH_DISABLE_MKFATFS, CONFIG_EXAMPLES_NSH_DISABLE_MKFIFO,
-  CONFIG_EXAMPLES_NSH_DISABLE_MKRD,  CONFIG_EXAMPLES_NSH_DISABLE_MH,      CONFIG_EXAMPLES_NSH_DISABLE_MOUNT,
-  CONFIG_EXAMPLES_NSH_DISABLE_MW,    CONFIG_EXAMPLES_NSH_DISABLE_PS,      CONFIG_EXAMPLES_NSH_DISABLE_PING,
-  CONFIG_EXAMPLES_NSH_DISABLE_PUT,   CONFIG_EXAMPLES_NSH_DISABLE_PWD,     CONFIG_EXAMPLES_NSH_DISABLE_RM,
-  CONFIG_EXAMPLES_NSH_DISABLE_RMDIR, CONFIG_EXAMPLES_NSH_DISABLE_SET,     CONFIG_EXAMPLES_NSH_DISABLE_SH,
-  CONFIG_EXAMPLES_NSH_DISABLE_SLEEP, CONFIG_EXAMPLES_NSH_DISABLE_TEST,    CONFIG_EXAMPLES_NSH_DISABLE_UMOUNT,
-  CONFIG_EXAMPLES_NSH_DISABLE_UNSET, CONFIG_EXAMPLES_NSH_DISABLE_USLEEP,  CONFIG_EXAMPLES_NSH_DISABLE_XD,
+  CONFIG_EXAMPLES_NSH_DISABLE_CAT,      CONFIG_EXAMPLES_NSH_DISABLE_CD,      CONFIG_EXAMPLES_NSH_DISABLE_CP,
+  CONFIG_EXAMPLES_NSH_DISABLE_DD,       CONFIG_EXAMPLES_NSH_DISABLE_ECHO,    CONFIG_EXAMPLES_NSH_DISABLE_EXEC,
+  CONFIG_EXAMPLES_NSH_DISABLE_EXIT,     CONFIG_EXAMPLES_NSH_DISABLE_GET,     CONFIG_EXAMPLES_NSH_DISABLE_HELP,
+  CONFIG_EXAMPLES_NSH_DISABLE_IFCONFIG, CONFIG_EXAMPLES_NSH_DISABLE_LS,      CONFIG_EXAMPLES_NSH_DISABLE_MB,
+  CONFIG_EXAMPLES_NSH_DISABLE_MEM,      CONFIG_EXAMPLES_NSH_DISABLE_MKDIR,   CONFIG_EXAMPLES_NSH_DISABLE_MKFATFS,
+  CONFIG_EXAMPLES_NSH_DISABLE_MKFIFO,   CONFIG_EXAMPLES_NSH_DISABLE_MKRD,    CONFIG_EXAMPLES_NSH_DISABLE_MH,
+  CONFIG_EXAMPLES_NSH_DISABLE_MOUNT,    CONFIG_EXAMPLES_NSH_DISABLE_MW,      CONFIG_EXAMPLES_NSH_DISABLE_PS,
+  CONFIG_EXAMPLES_NSH_DISABLE_PING,     CONFIG_EXAMPLES_NSH_DISABLE_PUT,     CONFIG_EXAMPLES_NSH_DISABLE_PWD,
+  CONFIG_EXAMPLES_NSH_DISABLE_RM,       CONFIG_EXAMPLES_NSH_DISABLE_RMDIR,   CONFIG_EXAMPLES_NSH_DISABLE_SET,
+  CONFIG_EXAMPLES_NSH_DISABLE_SH,       CONFIG_EXAMPLES_NSH_DISABLE_SLEEP,   CONFIG_EXAMPLES_NSH_DISABLE_TEST,
+  CONFIG_EXAMPLES_NSH_DISABLE_UMOUNT,   CONFIG_EXAMPLES_NSH_DISABLE_UNSET,   CONFIG_EXAMPLES_NSH_DISABLE_USLEEP,
+  CONFIG_EXAMPLES_NSH_DISABLE_XD
 
 NSH-Specific Configuration Settings
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^