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Full Discussion: Korn Shell help - Using parameter to create variable names
Top Forums Shell Programming and Scripting Korn Shell help - Using parameter to create variable names Post 302770181 by mrevello on Thursday 14th of February 2013 04:18:36 PM
Old 02-14-2013
Hammer & Screwdriver Korn Shell help - Using parameter to create variable names
I'm using korn shell and I am wondering if it's possible to use a parameter passed into a function to build a variable name in a configuration file. I have the function in one source file, I'd like to have a global configuration file instead of hardcoding logins to each script.

So I have a function, it accepts a system ID and I want to use that ID to read a configuration file for the server, user name and login for several different FTP sites. When I pass in the system ID of boe I then want to read the configuration file for boeServer, boeUser and boePassword but keep getting not found.

This is my source file functions:
Code:
function ftpConfirm {
system=$1
# Configuration file to look up FTP information
. $HOME/ftpLogins
server="${system}Server"
user="${system}User"
password="${system}Password"
echo "**** System variable passed in: $system"
echo "**** Server we are connecting to: $server"
echo "**** User name: $user"
echo "**** Password: $password"
echo "* Just referencing the variable returns the results I want: $boeServer"

Here's my config file ftpLogins:
Code:
export boeServer=ftp1
export boeUser=teamUser
export boePassword=download
export ibmServer=ibm1
export ibmUser=teamUser
export ibmPassword=download

And a simple script to call the function that I'm using:
Code:
#!/bin/ksh -f
. $HOME/fucntions
ftpConfirm "boe"

This would allow us to essentially build one function that could FTP anywhere we need and if we FTP to that server more than once, we would have to make just one change.

Thanks in advance,
Mike
 

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LEARN ABOUT SUNOS

ftpconfig

ftpconfig(1M)						  System Administration Commands					     ftpconfig(1M)

NAME

       ftpconfig - set up anonymous FTP

SYNOPSIS

       ftpconfig [ftpdir]

       ftpconfig -d ftpdir

DESCRIPTION

       The ftpconfig script is executed by the super user to set up anonymous FTP. Anonymous FTP allows users to remotely log on to the FTP server
       by specifying the user name  ftp or anonymous and the user's email  address as password. The anonymous users  are  logged  on  to  the  FTP
       Server  and  given  access to a restricted file area with its own file system root. See chroot(2). The FTP area has  its own minimal system
       files.

       This command will copy and set up all the components needed to operate an anonymous FTP server, including creating the  ftp  user  account,
       creating  device  nodes,  copying  /usr/lib files, and copying timezone data.  The passwd and group files set up have been stripped down to
       prevent malicious users from finding login names on the server.	The anonymous file area will be placed	under  ftpdir.	If  the  ftp  user
       account already exists, then the current FTP area is used, and the system files in it are updated. All other files are left untouched. This
       command should be run to update the anonymous FTP area's configuration whenever a system patch is installed, or the system is upgraded.

OPTIONS

       -d	Create a new or update an existing ftpdir without creating or updating the ftp user account. Use this option when  creating  guest
		FTP user accounts.

OPERANDS

       The following operands are supported:

       ftpdir	The absolute pathname of the directory under which the anonymous FTP area is set up.

EXIT STATUS

       The following exit values are returned:

       0	Successful completion

       1	Improper usage of the command

       2	Command failed

ATTRIBUTES

       See attributes(5)  for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWftpu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       ftpaddhost(1M), in.ftpd(1M), useradd(1M), chroot(2), attributes(5)

SunOS 5.10							    1 May 2003							     ftpconfig(1M)
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