首先，我们从BIOS进入Shell，输入help命令查看帮助信息

Shell：helpacpiview      - Display ACPI Table information.
alias         - Displays, creates, or deletes UEFI Shell aliases.
attrib        - Displays or modifies the attributes of files or directories.
bcfg          - Manages the boot and driver options that are stored in NVRAM.
cd            - Displays or changes the current directory.
cls           - Clears the console output and optionally changes the background and foreground color.
comp          - Compares the contents of two files on a byte-for-byte basis.
connect       - Binds a driver to a specific device and starts the driver.
cp            - Copies one or more files or directories to another location.
date          - Displays and sets the current date for the system.
dblk          - Displays one or more blocks from a block device.
devices       - Displays the list of devices managed by UEFI drivers.
devtree       - Displays the UEFI Driver Model compliant device tree.
dh            - Displays the device handles in the UEFI environment.
disconnect    - Disconnects one or more drivers from the specified devices.
dmem          - Displays the contents of system or device memory.
dmpstore      - Manages all UEFI variables.
drivers       - Displays the UEFI driver list.
drvcfg        - Invokes the driver configuration.
drvdiag       - Invokes the Driver Diagnostics Protocol.
dumpfdt       - Dump current Flat Device Tree (FDT)
echo          - Controls script file command echoing or displays a message.
edit          - Provides a full screen text editor for ASCII or UCS-2 files.
eficompress   - Compresses a file using UEFI Compression Algorithm.
efidecompress - Decompresses a file using UEFI Decompression Algorithm.
else          - Identifies the code executed when 'if' is FALSE.
endfor        - Ends a 'for' loop.
endif         - Ends the block of a script controlled by an 'if' statement.
exit          - Exits the UEFI Shell or the current script.
for           - Starts a loop based on 'for' syntax.
getmtc        - Gets the MTC from BootServices and displays it.
goto          - Moves around the point of execution in a script.
help          - Displays the UEFI Shell command list or verbose command help.
hexedit       - Provides a full screen hex editor for files, block devices, or memory.
if            - Executes commands in specified conditions.
ifconfig      - Modifies the default IP address of the UEFI IPv4 Network Stack.
load          - Loads a UEFI driver into memory.
loadpcirom    - Loads a PCI Option ROM.
ls            - Lists the contents of a directory or file information.
map           - Displays or defines file system mappings.
memmap        - Displays the memory map maintained by the UEFI environment.
mkdir         - Creates one or more new directories.
mm            - Displays or modifies MEM/MMIO/IO/PCI/PCIE address space.
mode          - Displays or changes the console output device mode.
mv            - Moves one or more files to a destination within or between file systems.
openinfo      - Displays the protocols and agents associated with a handle.
parse         - Retrieves a value from a standard format output file.
pause         - Pauses a script and waits for an operator to press a key.
pci           - Displays PCI device list or PCI function configuration space and PCIe extended
configuration space.
ping          - Ping the target host with an IPv4 stack.
reconnect     - Reconnects drivers to the specific device.
reset         - Resets the system.
rm            - Deletes one or more files or directories.
sermode       - Sets serial port attributes.
set           - Displays or modifies UEFI Shell environment variables.
setfdt        - Define and/or re-install a Flat Device Tree (FDT)
setsize       - Adjusts the size of a file.
setvar        - Displays or modifies a UEFI variable.
shift         - Shifts in-script parameter positions.
smbiosview    - Displays SMBIOS information.
stall         - Stalls the operation for a specified number of microseconds.
tftp          - Download a file from TFTP server.
time          - Displays or sets the current time for the system.
timezone      - Displays or sets time zone information.
touch         - Updates the filename timestamp with the current system date and time.
type          - Sends the contents of a file to the standard output device.
unload        - Unloads a driver image that was already loaded.
ver           - Displays UEFI Firmware version information.
vol           - Displays or modifies information about a disk volume.Help usage:help [cmd|pattern|special] [-usage] [-verbose] [-section name][-b]

中文释义

Shell命令通用选项

自己写一个UEFI Shell 命令（基于开源EDK2代码）

…待补充

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