📄 help-command.html
字号:
<!-- Copyright (C) 2009 Free Software Foundation, Inc. -->
<!-- This material may be distributed only subject to the terms -->
<!-- and conditions set forth in the Open Publication License, v1.0 -->
<!-- or later (the latest version is presently available at -->
<!-- http://www.opencontent.org/openpub/). -->
<!-- Distribution of the work or derivative of the work in any -->
<!-- standard (paper) book form is prohibited unless prior -->
<!-- permission is obtained from the copyright holder. -->
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>help</TITLE
><meta name="MSSmartTagsPreventParsing" content="TRUE">
<META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REL="HOME"
TITLE="RedBoot User's Guide"
HREF="redboot-guide.html"><LINK
REL="UP"
TITLE="Common Commands"
HREF="common-commands.html"><LINK
REL="PREVIOUS"
TITLE="dump"
HREF="dump-command.html"><LINK
REL="NEXT"
TITLE="iopeek"
HREF="iopeek-command.html"></HEAD
><BODY
CLASS="REFENTRY"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>RedBoot User's Guide</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="dump-command.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="iopeek-command.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><H1
><A
NAME="HELP-COMMAND"
></A
>help</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN943"
></A
><H2
>Name</H2
>help -- Display help on available commands</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN946"
></A
><H2
>Synopsis</H2
><P
><B
CLASS="COMMAND"
>help</B
> [<TT
CLASS="REPLACEABLE"
><I
> topic</I
></TT
>]</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN951"
></A
><H2
>Arguments</H2
><DIV
CLASS="INFORMALTABLE"
><P
></P
><A
NAME="AEN953"
></A
><TABLE
BORDER="1"
FRAME="border"
RULES="all"
CLASS="CALSTABLE"
><COL
WIDTH="1*"
TITLE="C1"><COL
WIDTH="1*"
TITLE="C2"><COL
WIDTH="1*"
TITLE="C3"><COL
WIDTH="1*"
TITLE="C4"><THEAD
><TR
><TH
>Name</TH
><TH
>Type</TH
><TH
>Description</TH
><TH
>Default</TH
></TR
></THEAD
><TBODY
><TR
><TD
><TT
CLASS="REPLACEABLE"
><I
>topic</I
></TT
></TD
><TD
>String</TD
><TD
>Which command to provide help for.</TD
><TD
>All commands</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN972"
></A
><H2
>Description</H2
><P
>The <B
CLASS="COMMAND"
>help</B
> command displays information about the available
RedBoot commands. If a <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>topic</I
></SPAN
> is given, then the display
is restricted to information about that specific command.
</P
><P
>If the command has sub-commands, e.g. <B
CLASS="COMMAND"
>fis</B
>, then the topic
specific display will print additional information about the available sub-commands.
special (ICMP) packets to a specific host. These packets should be automatically
returned by that host. The command will indicate how many of these round-trips
were successfully completed.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN979"
></A
><H2
>Examples</H2
><P
>Show generic help. Note that the contents of this display will depend on the various configuration
options for RedBoot when it was built.
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>RedBoot> <KBD
CLASS="USERINPUT"
>help</KBD
>
Manage aliases kept in FLASH memory
alias name [value]
Manage machine caches
cache [ON | OFF]
Display/switch console channel
channel [-1|<channel number>]
Compute a 32bit checksum [POSIX algorithm] for a range of memory
cksum -b <location> -l <length>
Display (hex dump) a range of memory
dump -b <location> [-l <length>] [-s] [-1|-2|-4]
Manage FLASH images
fis {cmds}
Manage configuration kept in FLASH memory
fconfig [-i] [-l] [-n] [-f] [-d] | [-d] nickname [value]
Execute code at a location
go [-w <timeout>] [entry]
Uncompress GZIP compressed data
gunzip -s <location> -d <location>
Help about help?
help [<topic>]
Read I/O location
iopeek [-b <location>] [-1|2|4]
Write I/O location
iopoke [-b <location>] [-1|2|4] -v <value>
Set/change IP addresses
ip_address [-l <local_ip_address>[/<mask_length>]] [-h <server_address>]
Load a file
load [-r] [-v] [-d] [-h <host>] [-m {TFTP | HTTP | {x|y}MODEM -c <channel_number>}]
[-f <flash_address>] [-b <base_address>] <file_name>
Compare two blocks of memory
mcmp -s <location> -d <location> -l <length> [-1|-2|-4]
Fill a block of memory with a pattern
mfill -b <location> -l <length> -p <pattern>
[-1|-2|-4]
Network connectivity test
ping [-v] [-n <count>] [-l <length>] [-t <timeout>] [-r <rate>]
[-i <IP_addr>] -h <IP_addr>
Reset the system
reset
Display RedBoot version information
version
Display (hex dump) a range of memory
x -b <location> [-l <length>] [-s] [-1|-2|-4]</PRE
></TD
></TR
></TABLE
>
</P
><P
>Help about a command with sub-commands.
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>RedBoot> <KBD
CLASS="USERINPUT"
>help fis</KBD
>
Manage FLASH images
fis {cmds}
Create an image
fis create -b <mem_base> -l <image_length> [-s <data_length>]
[-f <flash_addr>] [-e <entry_point>] [-r <ram_addr>] [-n] <name>
Display an image from FLASH Image System [FIS]
fis delete name
Erase FLASH contents
fis erase -f <flash_addr> -l <length>
Display free [available] locations within FLASH Image System [FIS]
fis free
Initialize FLASH Image System [FIS]
fis init [-f]
Display contents of FLASH Image System [FIS]
fis list [-c] [-d]
Load image from FLASH Image System [FIS] into RAM
fis load [-d] [-b <memory_load_address>] [-c] name
Write raw data directly to FLASH
fis write -f <flash_addr> -b <mem_base> -l <image_length></PRE
></TD
></TR
></TABLE
>
</P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="dump-command.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="redboot-guide.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="iopeek-command.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>dump</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="common-commands.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>iopeek</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -