查看文件系統。默認是flash.
dir all (flash: )
show file system 更改目錄：
cd xx
pwd (查看當前目錄） 新建目錄：
mkdir xx
刪除目錄：
delete/force(不再詢問確認)/recursive(刪除目錄下的子目錄和文件)
如果是flash: (整個flash )，如果是目錄，則是整個目錄。
不可恢復。 copy，還是復制。
創建一個tar文件：
archive tar/creat x...(目的) x...(源)
查看一個tar包含的文件：
archive tar/table xxx.tar
解壓縮一個tar文件：
archive tar/xtract xxx.tar flash: (解壓縮整個tar,只能解到當前flash)
archive tar/xtract xxx.tar flash:/xxxxx (指定解壓縮整個tar，或其中某個文件，目錄) 查看一個可讀文件的內容：
more xxx (可以是遠程的,如TFTP)
配置文件：
Switch# copy tftp://172.16.2.155/tokyo-confg system:running-config (多了個system
Switch# copy system:running-config tftp://172.16.2.155/tokyo-confg (多了個system
cisco.com上提供的ios為tar格式。包含的文件見文檔。
升級IOS文件：
archive download-sw/overwrite(覆蓋原IOS)/reload(重啟) [url]ftp://x.tar[/url]
或者
archive download-sw/leave-old-sw(保留原IOS)/reload(重啟) [url]ftp://x.tar[/url] download時會有算法來驗證新IOS是否適合當前模塊和內存，否則會報錯。
如查選用/overwrite，不管down的IOS是否與現在相同，都會被刪除。
download完成后，會自動將boot參數指向新IOS。 (文檔雖然沒講，但是我想，有足夠flash空間的情況下，還是不要覆蓋原IOS，傳完再刪)
上傳IOS文件：
archive upload-sw [url]ftp://x.tar[/url]
上傳算法會自動把多個系統文件生成為.tar ,并上傳。
(詳細系統組成文件見文檔937頁):info, the Cisco IOS p_w_picpath, and the web management files.


IOS恢復參見文檔里的Troubleshooting部分 升級前后對比：
升級前
Switch#dir flash:
Directory of flash:/ 5 drwx 192 Mar 01 1993 00:03:52 c3750-i9-mz.121-19.EA1d 15998976 bytes total (9545728 bytes free)
Switch# Switch#sh ver
Cisco Internetwork Operating System Software
IOS (tm) C3750 Software (C3750-I9-M), Version 12.1(19)EA1d, RELEASE SOFTWARE (fc
1)
Copyright (c) 1986-2004 by cisco Systems, Inc.
Compiled Mon 05-Apr-04 22:40 by antonino
Image text-base: 0x00003000, data-base: 0x007CBC3C ROM: Bootstrap program is C3750 boot loader
BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.1(19r)EA1b, RELEASE SOFTWA
RE (fc2) Switch uptime is 16 minutes
System returned to ROM by power-on
System p_w_picpath file is "flash:c3750-i9-mz.121-19.EA1d/c3750-i9-mz.121-19.EA1d.bin" cisco WS-C3750G-12S (PowerPC405) processor (revision H0) with 118776K/12288K byt
es of memory.
Processor board ID CAT0849N2YU
Last reset from power-on
1 Virtual Ethernet/IEEE 802.3 interface(s)
12 Gigabit Ethernet/IEEE 802.3 interface(s)
The password-recovery mechanism is enabled. 512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address : 00:129:97:7C:80
Motherboard assembly number : 73-8307-08
Power supply part number : 341-0048-01
Motherboard serial number : CAT084911NJ
Power supply serial number : DTH08441JZ5
Model revision number : H0
Motherboard revision number : A0
Model number : WS-C3750G-12S-S
System serial number : CAT0849N2YU
Top Assembly Part Number : 800-21966-01
Top Assembly Revision Number : L0
Version ID : N/A
Hardware Board Revision Number : 0x07
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 12 WS-C3750G-12S 12.1(19)EA1d C3750-I9-M
Configuration register is 0xF Switch#
升級后： Switch#sh flash: Directory of flash:/ 2 -rwx 1075 Mar 1 1993 00:24:27 +00:00 config.text
3 drwx 192 Mar 1 1993 00:23:48 +00:00 c3750-i5-mz.122-25.SEA
5 -rwx 5 Mar 1 1993 00:24:27 +00:00 private-config.text 15998976 bytes total (8053760 bytes free)
Switch#
Switch#sh ver
Cisco IOS Software, C3750 Software (C3750-I5-M), Version 12.2(25)SEA, RELEASE SO
FTWARE (fc)
Copyright (c) 1986-2005 by Cisco Systems, Inc.
Compiled Tue 25-Jan-05 20:26 by antonino ROM: Bootstrap program is C3750 boot loader
BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.1(19r)EA1b, RELEASE SOFTWA
RE (fc2) Switch uptime is 2 minutes
System returned to ROM by power-on
System p_w_picpath file is "flash:c3750-i5-mz.122-25.SEA/c3750-i5-mz.122-25.SEA.bin" cisco WS-C3750G-12S (PowerPC405) processor (revision H0) with 118784K/12280K byt
es of memory.
Processor board ID CAT0849N2YU
Last reset from power-on
1 Virtual Ethernet interface
12 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled. 512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address : 00:129:97:7C:80
Motherboard assembly number : 73-8307-08
Power supply part number : 341-0048-01
Motherboard serial number : CAT084911NJ
Power supply serial number : DTH08441JZ5
Model revision number : H0
Motherboard revision number : A0
Model number : WS-C3750G-12S-S
System serial number : CAT0849N2YU
Top Assembly Part Number : 800-21966-01
Top Assembly Revision Number : L0
Version ID : N/A
Hardware Board Revision Number : 0x07
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 12 WS-C3750G-12S 12.2(25)SEA C3750-I5-M
Configuration register is 0xF Switch#

轉載于:https://blog.51cto.com/3layer/36877

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