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Assume I have a function.ksh file that contains a function called getServerIp. I don't want to create a new script file and import function.ksh, I just want to run getServerIp from my current shell. As far as I know this is not possible; is there some way I've missed?

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It's quite possible.

Create a directory (let's say $HOME/functions), and put your getServerIp function in a file called getServerIp in that directory. Make sure that file is executable.

Then all you need is to add $HOME/functions to your $FPATH environment variable and you're done - you can call getServerIp as if it was a built-in.

There are other options too. Please check out: Korn Shell Functions.

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Well it is not quite what I want to do. Let s say there are several function like getServerIp, getVirtualIp, IsCluster etc. . The thing is they are all generic functions and they can be called when I import function.ksh file on another script file. What I want is just run IsCluster in command prompt. In the way you said, I should do the same settings for all functions in function.ksh. Please correct me if I am wrong. Thank you. – mibzer Oct 4 '11 at 14:51
With what I wrote above, you don't need to import anything. All the functions you place in FPATH (in files with the same name as the function) get auto-imported in your shell. You can use them directly on the command line or in scripts without any other work. – Mat Oct 4 '11 at 15:18
Yes you are we dont need to import anything. However I don t want to add my function to a new file and add it to FPATH. I need a way to call my function a way like calling a method. For example is it possible to call the function as "function.ksh getSeverIp" . I hope it is not complicated and I hope I explained myself. Thank you for your answers. – mibzer Oct 4 '11 at 19:39

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