Function / command to append data to config files (rc, hosts...)?

[solal]

Hi guys.

are you aware of / used before a function or command to append new data to configuration files (i.e like /etc/usermap.cfg and /etc/passwd) in WFA?

Thanks in advance,

Solal.

[adaikkap]

Hi Solal,

     Can you elaborate on what you are trying to do and why you need this ? This may help understand the need better and propose other solutions as well.

Regards

adai

[arndt · Accepted solution]

I wrote a command to add an SSH publickey to a 7 Mode storage system, and I used API calls that just append to a file to get this done:

https://communities.netapp.com/docs/DOC-29903

You could copy the above command and modify it to meet your needs.  Hope that helps,

Mike

[solal]

Thanks guys.

I got another example from Anatoly that really helped as well:

You can use ONTAP toolkit cmdlets Read-NcDirectory, Read-NcFile, Write-NcFile inside the command in WFA in order to do it 
Example:
# connect to controller
Get-WFALogger -Info -message $("Connecting to " + $Cluster)
Connect-WfaCluster $Cluster
Read-NcDirectory -Path /vol/vs1_root/.vsadmin/config/etc -VserverContext vs1
Read-NcFile -Path /vol/vs1_root/.vsadmin/config/etc/master.passwd -VserverContext vs1
$data = "nobody2:*:65535:65535::::::"
Write-NcFile -Path /vol/vs1_root/.vsadmin/config/etc/master.passwd -Data $data -Append -VserverContext vs1

[sinhaa]

Thanks for sharing Solal. Very useful information.

[solal]

That's my final one that works in a workflow:

param (
  [parameter(Mandatory=$true, HelpMessage="Array name or IP address")]
  [string]$Array,
  [parameter(Mandatory=$true, HelpMessage="Full path to filer or vfiler requested file, example: hosts")]
  [string]$FilePath,
  [parameter(Mandatory=$true, HelpMessage="New Line to enter to the configuration file. One line at a time.")]
  [string]$LineEntered
)
# connect to controller
Connect-WfaController -Array $Array 
$rootvol=Get-NaVolRoot
$fullpath="/vol/" + $rootvol.Name + "/etc/" + $FilePath
# Write the line to the file.
Write-NaFile -Path $fullpath -Append -Data $("`n" + "$LineEntered" + "`n")
   # End of Command

[Vinu]

Hi Solal,

I am not able to append data in configuration files like as /etc/rc, /etc/hosts, /etc/exports...etc,    i am trying to go through your attachment but it is not opening .

So please tell me how can i append data in files.

Is there any command for copying and creating files and directories like as cp and mkdir?

Regards

Vinod