Using the Device File Systems, Directories, and Files

Information About the Device File Systems, Directories, and Files

This section describes file systems, directories, and files on the Cisco NX-OS device.

File Systems

The syntax for specifying a local file system is filesystem:[//modules/] .

This table describes file systems that you can reference on your device.

Table 1. File System Syntax Components

File System Name

Module

Description

bootflash

sup-active

sup-local

Internal CompactFlash memory located on the active supervisor module used for storing image files, configuration files, and other miscellaneous files. The initial default directory is bootflash.

bootflash

sup-standby

sup-remote

Internal CompactFlash memory located on the standby supervisor module used for storing image files, configuration files, and other miscellaneous files.

volatile

—

Volatile random-access memory (VRAM) located on a supervisor module used for temporary or pending changes.

log

—

Memory on the active supervisor that stores logging file statistics.

system

—

Memory on a supervisor module used for storing the running-configuration file.

debug

—

Memory on a supervisor module used for debug logs.

Directories

You can create directories on bootflash: and external flash memory (slot0:, usb1:, and usb2:). You can navigate through these directories and use them for files.

Files

You create and access files on bootflash:. volatile:, slot0:, usb1:, and usb2: file systems. You can only access files on the system: file systems. You can use the debug: file system for debug log files specified in the debug logfile command.

You can download files, such as system image files, from remote servers using FTP, Secure Copy (SCP), Secure Shell FTP (SFTP), and TFTP. You can also copy files from an external server to the device, because the device can act as an SCP server.

Working with Directories

This section describes how to work with directories on the Cisco NX-OS device.

Identifying the Current Directory

You can display the directory name of your current directory.

SUMMARY STEPS

  1. pwd

DETAILED STEPS

Command or Action Purpose

pwd

Example:

switch# pwd

Displays the name of your current directory.

Changing the Current Directory

You can change the current directory for file system operations. The initial default directory is bootflash:.

SUMMARY STEPS

  1. (Optional) pwd
  2. cd {directory | filesystem:[//module/][directory]}

DETAILED STEPS

  Command or Action Purpose

Step 1

(Optional) pwd

Example:

switch# pwd
 (Optional)

Displays the name of your current default directory.

Step 2

cd {directory | filesystem:[//module/][directory]}

Example:

switch# cd slot0:

Changes to a new current directory. The file system, module, and directory names are case sensitive.

Creating a Directory

You can create directories in the bootflash: and flash device file systems.

SUMMARY STEPS

  1. (Optional) pwd
  2. (Optional) cd {directory | filesystem:[//module/][directory]}
  3. mkdir [filesystem:[//module/]]directory

DETAILED STEPS

  Command or Action Purpose

Step 1

(Optional) pwd

Example:

switch# pwd
 (Optional)

Displays the name of your current default directory.

Step 2

(Optional) cd {directory | filesystem:[//module/][directory]}

Example:

switch# cd slot0:
 (Optional)

Changes to a new current directory. The file system, module, and directory names are case sensitive.

Step 3

mkdir [filesystem:[//module/]]directory

Example:

switch# mkdir test

Creates a new directory. The filesystem argument is case sensitive. The directory argument is alphanumeric, case sensitive, and has a maximum of 64 characters.

Displaying Directory Contents

You can display the contents of a directory.

SUMMARY STEPS

  1. dir [directory | filesystem:[//module/][directory]]

DETAILED STEPS

Command or Action Purpose

dir [directory | filesystem:[//module/][directory]]

Example:

switch# dir bootflash:test

Displays the directory contents. The default is the current working directory. The file system and directory names are case sensitive.

Deleting a Directory

You can remove directories from the file systems on your device.

Before you begin

Ensure that the directory is empty before you try to delete it.

SUMMARY STEPS

  1. (Optional) pwd
  2. (Optional) dir [filesystem :[//module/][directory]]
  3. rmdir [filesystem :[//module/]]directory

DETAILED STEPS

  Command or Action Purpose

Step 1

(Optional) pwd

Example:

switch# pwd
 (Optional)

Displays the name of your current default directory.

Step 2

(Optional) dir [filesystem :[//module/][directory]]

Example:

switch# dir bootflash:test
 (Optional)

Displays the contents of the current directory. The file system, module, and directory names are case sensitive.

If the directory is not empty, you must delete all the files before you can delete the directory.

Step 3

rmdir [filesystem :[//module/]]directory

Example:

switch# rmdir test

Deletes a directory. The file system and directory name are case sensitive.

Accessing Directories on Standby Supervisor Modules

This example shows how to list the files on the standby supervisor module:


switch# dir bootflash://sup-remote
   12198912     Aug 27 16:29:18 2003  m9500-sf1ek9-kickstart-mzg.1.3.0.39a.bin
    1864931     Apr 29 12:41:59 2003  dplug2
      12288     Apr 18 20:23:11 2003  lost+found/
   12097024     Nov 21 16:34:18 2003  m9500-sf1ek9-kickstart-mz.1.3.1.1.bin
   41574014     Nov 21 16:34:47 2003  m9500-sf1ek9-mz.1.3.1.1.bin 

Usage for bootflash://sup-remote
   67747169 bytes used
  116812447 bytes free
  184559616 bytes total

This example shows how to delete a file on the standby supervisor module:


switch# delete bootflash://sup-remote/aOldConfig.txt

Working with Files

This section describes how to work with files on the Cisco NX-OS device.

Moving Files

You can move a file from one directory to another directory.


Caution

If a file with the same name already exists in the destination directory, that file is overwritten by the moved file.

You can use the move command to rename a file by moving the file within the same directory.

SUMMARY STEPS

  1. (Optional) pwd
  2. (Optional) dir [filesystem:[//module/][directory]]
  3. move [filesystem:[//module/][directory /] | directory/]source-filename {{filesystem:[//module/][directory /] | directory/}[target-filename] | target-filename}

DETAILED STEPS

  Command or Action Purpose

Step 1

(Optional) pwd

Example:

switch# pwd
 (Optional)

Displays the name of your current default directory.

Step 2

(Optional) dir [filesystem:[//module/][directory]]

Example:

switch# dir bootflash
 (Optional)

Displays the contents of the current directory. The file system and directory name are case sensitive.

Step 3

move [filesystem:[//module/][directory /] | directory/]source-filename {{filesystem:[//module/][directory /] | directory/}[target-filename] | target-filename}

Example:

switch# move test old_tests/test1

Moves a file.

The file system, module, and directory names are case sensitive.

The target-filename argument is alphanumeric, case sensitive, and has a maximum of 64 characters. If the target-filename argument is not specified, the filename defaults to the source-filename argument value.

Copying Files

This example shows how to copy the file called samplefile from the root directory of the slot0: file system to the mystorage directory: 

switch# copy slot0:samplefile slot0:mystorage/samplefile

This example shows how to copy a file from the current directory level:

switch# copy samplefile mystorage/samplefile

This example shows how to copy a file from the active supervisor module bootflash to the standby supervisor module bootflash:

switch# copy bootflash:system_image bootflash://sup-2/system_image

You can also use the copy command to upload and download files from the slot0: or bootflash: file system to or from a FTP, TFTP, SFTP, or SCP server.

Copying Files to the HTTP Server

You can copy a file from boot flash, running configuration, or startup configuration to the HTTP server in the default path of server using the new feature HTTP PUT. The HTTP PUT functionality copies a file into the HTTP server via the default or the management VRF. It uses the HTTP POST method to upload the files and HTTP upload can be done via v4/v6 interface to v4/v6 HTTP server.

SUMMARY STEPS

  1. (Optional) pwd
  2. copy bootflash :///<filename> http:// <httpserver-ip> /path source-interface <interface>
  3. copy bootflash :///<filename> http:// <httpserver-ip>/path vrf <default/management>
  4. copy running-config http://<httpserver-ip>/path vrf <default/management>
  5. copy startup-config http://<httpserver-ip>/path vrf <default/management>

DETAILED STEPS

  Command or Action Purpose

Step 1

(Optional) pwd

Example:

switch# pwd
 (Optional)

Displays the name of your current default directory.

Step 2

copy bootflash :///<filename> http:// <httpserver-ip> /path source-interface <interface>

Example:

switch# copy bootflash:///<filename> http://httpserver-ip/path source-interface <int>

Copies the file from the boot flash into the HTTP server via the source interface.

Step 3

copy bootflash :///<filename> http:// <httpserver-ip>/path vrf <default/management>

Example:

switch# copy bootflash:///<filename> http://httpserver-ip/path vrf <default/management>

Copies the file from the boot flash into the HTTP server via the default or the management VRF interface.

Step 4

copy running-config http://<httpserver-ip>/path vrf <default/management>

Example:

switch# copy running-config http://httpserver-ip/path vrf <default/management>

Copies the running configuration file into the HTTP server via the default or the management VRF interface.

Step 5

copy startup-config http://<httpserver-ip>/path vrf <default/management>

Example:

switch# copy startup-config http://httpserver-ip/path vrf <default/management>

Copies the startup configuration file into the HTTP server via the default or the management VRF interface.

Example

This example shows how to copy a file to an HTTP server via the default VRF interface: 

switch# copy n3000-uk9-kickstart.6.0.2.U5.0.995.bin http://12.1.2.10/httproot vrf default
Enter username: test 
Enter host password for user 'test': 
301 - Moved permanently to <a href="/httproot/">/httproot/</a>Copy complete, now saving to disk (please wait)...
switch#

Copying Files Using HTTP or HTTPS

You can make copies of files from remote server to local device using HTTP or HTTPS.


Note

Beginning with Cisco NX-OS Release 10.4(3)F, the copy http or copy https command supports TLS version 1.3 and 1.2 on Cisco Nexus switches.

SUMMARY STEPS

  1. (Optional) pwd
  2. (Optional) dir [filesystem:[//module/][directory]]
  3. copy https:// username:password@directory/filename bootflash: vrf management
  4. copy http:// directory/filename bootflash: vrf management

DETAILED STEPS

  Command or Action Purpose

Step 1

(Optional) pwd

Example:

switch# pwd
 (Optional)

Displays the name of your current default directory.

Step 2

(Optional) dir [filesystem:[//module/][directory]]

Example:

switch# dir bootflash
 (Optional)

Displays the contents of the current directory. The file system and directory name are case sensitive.

Step 3

copy https:// username:password@directory/filename bootflash: vrf management

Example:

switch(config)# copy https://username1:pwd1@192.168.0.1/test.txt bootflash: vrf management

Copies the specified files from remote server to local device using https option.

Step 4

copy http:// directory/filename bootflash: vrf management

Example:

switch(config)# copy http://192.168.0.1/test.txt bootflash: vrf management

Copies the specified files from remote server to local device using http option.

Deleting Files

You can delete a file from a directory.

SUMMARY STEPS

  1. (Optional) dir [filesystem:[//module/][directory]]
  2. delete {filesystem:[//module/][directory/] | directory/}filename

DETAILED STEPS

  Command or Action Purpose

Step 1

(Optional) dir [filesystem:[//module/][directory]]

Example:

switch# dir bootflash
 (Optional)

Displays the contents of the current directory. The file system and directory name are case sensitive.

Step 2

delete {filesystem:[//module/][directory/] | directory/}filename

Example:

switch# delete test old_tests/test1

Deletes a file. The file system, module, and directory names are case sensitive. The source-filename argument is case sensitive.

Caution

 

If you specify a directory, the delete command deletes the entire directory and all its contents.

Displaying File Contents

You can display the contents of a file.

SUMMARY STEPS

  1. show file [filesystem:[//module/]][directory/]filename

DETAILED STEPS

Command or Action Purpose

show file [filesystem:[//module/]][directory/]filename

Example:

switch# show file bootflash:test-results

Displays the file contents.

Displaying File Checksums

You can display checksums to check the file integrity.

SUMMARY STEPS

  1. show file [filesystem:[//module/]][directory/]filename {cksum | md5sum}

DETAILED STEPS

Command or Action Purpose

show file [filesystem:[//module/]][directory/]filename {cksum | md5sum}

Example:

switch# show file bootflash:trunks2.cfg cksum

Displays the checksum or MD5 checksum of the file.

Compressing and Uncompressing Files

You can compress and uncompress files on your Cisco NX-OS device using Lempel-Ziv 1977 (LZ77) coding.

SUMMARY STEPS

  1. (Optional) dir [filesystem:[//module/]directory]]
  2. gzip [filesystem:[//module/][directory/] | directory/]filename
  3. gunzip [filesystem:[//module/][directory/] | directory/]filename .gz

DETAILED STEPS

  Command or Action Purpose

Step 1

(Optional) dir [filesystem:[//module/]directory]]

Example:

switch# dir bootflash:
 (Optional)

Displays the contents of the current directory. The file system and directory name are case sensitive.

Step 2

gzip [filesystem:[//module/][directory/] | directory/]filename

Example:

switch# gzip show_tech

Compresses a file. After the file is compressed, it has a .gz suffix.

Step 3

gunzip [filesystem:[//module/][directory/] | directory/]filename .gz

Example:

switch# gunzip show_tech.gz

Uncompresses a file. The file to uncompress must have the .gz suffix. After the file is uncompressed, it does not have the .gz suffix.

Displaying the Last Lines in a File

You can display the last lines of a file.

SUMMARY STEPS

  1. tail [filesystem:[//module/]][directory/]filename [lines]

DETAILED STEPS

Command or Action Purpose

tail [filesystem:[//module/]][directory/]filename [lines]

Example:

switch# tail ospf-gr.conf

Displays the last lines of a file. The default number of lines is 10. The range is from 0 to 80 lines.

Redirecting show Command Output

This example shows how to direct the output to a file on the bootflash: file system: 


switch# show interface > bootflash:switch1-intf.cfg

This example shows how to direct the output to a file on external flash memory: 


switch# show interface > slot0:switch-intf.cfg

This example shows how to direct the output to a file on a TFTP server: 


switch# show interface > tftp://10.10.1.1/home/configs/switch-intf.cfg
Preparing to copy...done

This example shows how to direct the output of the show tech-support command to a file: 


switch# show tech-support > Samplefile
Building Configuration ... 
switch# dir
    1525859     Jul 04 00:51:03 2003 Samplefile 
Usage for volatile://
    1527808 bytes used
   19443712 bytes free
   20971520 bytes total

Finding Files

This example shows how to find a file in the current default directory:


switch# find smm_shm.cfg
/usr/bin/find: ./lost+found: Permission denied 
./smm_shm.cfg 
./newer-fs/isan/etc/routing-sw/smm_shm.cfg 
./newer-fs/isan/etc/smm_shm.cfg

Working with Archive Files

The Cisco NX-OS software supports archive files. You can create an archive file, append files to an existing archive file, extract files from an archive file, and list the files in an archive file.

Creating an Archive Files

You can create an archive file and add files to it. You can specify the following compression types:

  • bzip2

  • gzip

  • Uncompressed

The default is gzip.

SUMMARY STEPS

  1. tar create {bootflash: | volatile:}archive-filename [absolute] [bz2-compress] [gz-compress] [remove] [uncompressed] [verbose] filename-list

DETAILED STEPS

Command or Action Purpose

tar create {bootflash: | volatile:}archive-filename [absolute] [bz2-compress] [gz-compress] [remove] [uncompressed] [verbose] filename-list

Creates an archive file and adds files to it. The filename is alphanumeric, not case sensitive, and has a maximum length of 240 characters.

The absolute keyword specifies that the leading backslash characters (\) should not be removed from the names of the files added to the archive file. By default, the leading backslash characters are removed.

The bz2-compress , gz-compress , and uncompressed keywords determine the compression utility used when files are added, or later appended, to the archive and the decompression utility to use when extracting the files. If you do not specify an extension for the archive file, the defaults are as follows:

  • For bz2-compress , the extension is .tar.bz2.

  • For gz-compress , the extension is .tar.gz.

  • For uncompressed , the extension is .tar.

The remove keyword specifies that the Cisco NX-OS software should delete the files from the file system after adding them to the archive. By default, the files are not deleted.

The verbose keyword specifies that the Cisco NX-OS software should list the files as they are added to the archive. By default, the files are listed as they are added.

Example

This example shows how to create a gzip compressed archive file:

switch# tar create bootflash:config-archive gz-compress bootflash:config-file

Appending Files to an Archive File

You can append files to an existing archive file on your Cisco NX-OS device.

Before you begin

You have created an archive file on your Cisco NX-OS device.

SUMMARY STEPS

  1. tar append {bootflash: | volatile:}archive-filename [absolute] [remove] [verbose] filename-list

DETAILED STEPS

Command or Action Purpose

tar append {bootflash: | volatile:}archive-filename [absolute] [remove] [verbose] filename-list

Adds files to an existing archive file. The archive filename is not case sensitive.

The absolute keyword specifies that the leading backslash characters (\) should not be removed from the names of the files added to the archive file. By default, the leading backslash characters are removed.

The remove keyword specifies that the Cisco NX-OS software should delete the files from the filesystem after adding them to the archive. By default, the files are not deleted.

The verbose keyword specifies that the Cisco NX-OS software should list the files as they are added to the archive. By default, the files are listed as they are added.

Example

This example shows how to append a file to an existing archive file:

switch# tar append bootflash:config-archive.tar.gz bootflash:new-config

Extracting Files from an Archive File

You can extract files to an existing archive file on your Cisco NX-OS device.

Before you begin

You have created an archive file on your Cisco NX-OS device.

SUMMARY STEPS

  1. tar extract {bootflash: | volatile:}archive-filename [keep-old] [screen] [to {bootflash: | volatile:}[/directory-name]] [verbose]

DETAILED STEPS

Command or Action Purpose

tar extract {bootflash: | volatile:}archive-filename [keep-old] [screen] [to {bootflash: | volatile:}[/directory-name]] [verbose]

Extracts files from an existing archive file. The archive filename is not case sensitive.

The keep-old keyword indicates that the Cisco NX-OS software should not overwrite files with the same name as the files being extracted.

The screen keyword specifies that the Cisco NX-OS software should display the contents of the extracted files to the terminal screen.

The to keyword specifies the target file system. You can include a directory name. The directory name is alphanumeric, case sensitive, and has a maximum length of 240 characters.

The verbose keyword specifies that the Cisco NX-OS software should display the names of the files as they are extracted.

Example

This example shows how to extract files from an existing archive file:

switch# tar extract bootflash:config-archive.tar.gz

Displaying the Filenames in an Archive File

You can display the names of the files in an archive files using the tar list command.

tar list {bootflash: | volatile:}archive-filename

The archive filename is not case sensitive. 


switch# tar list bootflash:config-archive.tar.gz
config-file
new-config

Examples of Using the File System

This section includes example of using the file system on the Cisco NX-OS device.

Accessing Directories on Standby Supervisor Modules

This example shows how to list the files on the standby supervisor module:


switch# dir bootflash://sup-remote
   12198912     Aug 27 16:29:18 2003  m9500-sf1ek9-kickstart-mzg.1.3.0.39a.bin
    1864931     Apr 29 12:41:59 2003  dplug2
      12288     Apr 18 20:23:11 2003  lost+found/
   12097024     Nov 21 16:34:18 2003  m9500-sf1ek9-kickstart-mz.1.3.1.1.bin
   41574014     Nov 21 16:34:47 2003  m9500-sf1ek9-mz.1.3.1.1.bin 

Usage for bootflash://sup-remote
   67747169 bytes used
  116812447 bytes free
  184559616 bytes total

This example shows how to delete a file on the standby supervisor module:


switch# delete bootflash://sup-remote/aOldConfig.txt

Moving Files

You can move a file from one directory to another directory.


Caution

If a file with the same name already exists in the destination directory, that file is overwritten by the moved file.

You can use the move command to rename a file by moving the file within the same directory.

SUMMARY STEPS

  1. (Optional) pwd
  2. (Optional) dir [filesystem:[//module/][directory]]
  3. move [filesystem:[//module/][directory /] | directory/]source-filename {{filesystem:[//module/][directory /] | directory/}[target-filename] | target-filename}

DETAILED STEPS

  Command or Action Purpose

Step 1

(Optional) pwd

Example:

switch# pwd
 (Optional)

Displays the name of your current default directory.

Step 2

(Optional) dir [filesystem:[//module/][directory]]

Example:

switch# dir bootflash
 (Optional)

Displays the contents of the current directory. The file system and directory name are case sensitive.

Step 3

move [filesystem:[//module/][directory /] | directory/]source-filename {{filesystem:[//module/][directory /] | directory/}[target-filename] | target-filename}

Example:

switch# move test old_tests/test1

Moves a file.

The file system, module, and directory names are case sensitive.

The target-filename argument is alphanumeric, case sensitive, and has a maximum of 64 characters. If the target-filename argument is not specified, the filename defaults to the source-filename argument value.

Copying Files

This example shows how to copy the file called samplefile from the root directory of the slot0: file system to the mystorage directory: 

switch# copy slot0:samplefile slot0:mystorage/samplefile

This example shows how to copy a file from the current directory level:

switch# copy samplefile mystorage/samplefile

This example shows how to copy a file from the active supervisor module bootflash to the standby supervisor module bootflash:

switch# copy bootflash:system_image bootflash://sup-2/system_image

You can also use the copy command to upload and download files from the slot0: or bootflash: file system to or from a FTP, TFTP, SFTP, or SCP server.

Deleting a Directory

You can remove directories from the file systems on your device.

Before you begin

Ensure that the directory is empty before you try to delete it.

SUMMARY STEPS

  1. (Optional) pwd
  2. (Optional) dir [filesystem :[//module/][directory]]
  3. rmdir [filesystem :[//module/]]directory

DETAILED STEPS

  Command or Action Purpose

Step 1

(Optional) pwd

Example:

switch# pwd
 (Optional)

Displays the name of your current default directory.

Step 2

(Optional) dir [filesystem :[//module/][directory]]

Example:

switch# dir bootflash:test
 (Optional)

Displays the contents of the current directory. The file system, module, and directory names are case sensitive.

If the directory is not empty, you must delete all the files before you can delete the directory.

Step 3

rmdir [filesystem :[//module/]]directory

Example:

switch# rmdir test

Deletes a directory. The file system and directory name are case sensitive.

Displaying File Contents

This example shows how to display the contents of a file on an external flash device: 


switch# show file slot0:test
configure terminal 
interface ethernet 1/1 
no shutdown 
end 
show interface ethernet 1/1

This example shows how to display the contents of a file that resides in the current directory: 


switch# show file myfile

Displaying File Checksums

This example shows how to display the checksum of a file:


switch# show file bootflash:trunks2.cfg cksum 
583547619

This example shows how to display the MD5 checksum of a file:

switch# show file bootflash:trunks2.cfg md5sum 
3b94707198aabefcf46459de10c9281c

Compressing and Uncompressing Files

This example shows how to compress a file: 


switch# dir
    1525859     Jul 04 00:51:03 2003 Samplefile 
...
switch# gzip volatile:Samplefile
switch# dir
     266069     Jul 04 00:51:03 2003 Samplefile.gz 
...

This example shows how to uncompress a compressed file: 


switch# dir
     266069     Jul 04 00:51:03 2003 Samplefile.gz 
... 
switch# gunzip samplefile
switch# dir
    1525859     Jul 04 00:51:03 2003 Samplefile 
...

Redirecting show Command Output

This example shows how to direct the output to a file on the bootflash: file system: 


switch# show interface > bootflash:switch1-intf.cfg

This example shows how to direct the output to a file on external flash memory: 


switch# show interface > slot0:switch-intf.cfg

This example shows how to direct the output to a file on a TFTP server: 


switch# show interface > tftp://10.10.1.1/home/configs/switch-intf.cfg
Preparing to copy...done

This example shows how to direct the output of the show tech-support command to a file: 


switch# show tech-support > Samplefile
Building Configuration ... 
switch# dir
    1525859     Jul 04 00:51:03 2003 Samplefile 
Usage for volatile://
    1527808 bytes used
   19443712 bytes free
   20971520 bytes total

Finding Files

This example shows how to find a file in the current default directory:


switch# find smm_shm.cfg
/usr/bin/find: ./lost+found: Permission denied 
./smm_shm.cfg 
./newer-fs/isan/etc/routing-sw/smm_shm.cfg 
./newer-fs/isan/etc/smm_shm.cfg

Default Settings for File System Parameters

This table lists the default settings for the file system parameters.

Table 2. Default File System Settings

Parameters

Default

Default filesystem

bootflash:

Additional References for File Systems

This section includes additional information related to the file systems.