[SOLVED] How to see function code?

saeedamer · 03-28-2012, 12:18 PM

Quote:

Originally Posted by instrumentpilot

saeedamer, I'm guessing your DEV12 is an alias. If you type alias on the command line then you should see it printed in the output.

Let us know,
Michael Cunningham

No, DEV12 is a function not an alias. I "$ alias" and DEV12 was not listed.

Code:

$ type DEV12
DEV12 is a function.
$

saeedamer · 03-28-2012, 12:21 PM

Quote:

Originally Posted by colucix

If functions are set in the environment, you should see them using the set command, as suggested by catkin above. In alternative you can try

Code:

type DEV12

If you don't see any relevant output, maybe the code you're looking for hasn't been defined as an environment shell function (please notice that functions must be exported using

Code:

export -f function_name

in order to be available to the users' environment). Which system and shell is this, anyway

AIX 6.1 and ksh.

Code:

$ type DEV12
DEV12 is a function.
$

And see this error please:

Code:

$ export -f home
ksh: export: 0403-010 A specified flag is not valid for this command.
$

Quote:

If functions are set in the environment, you should see them using the set command, as suggested by catkin above.

I do see them but no source code. Here is what I see:

Code:

_=DEV12

instrumentpilot · 03-28-2012, 01:37 PM

saeedamer, just for kicks I did

type declare

It comes back with "declare is a shell builtin".

I am running the /bin/bash shell so maybe you are not seeing the declare feature due to not being in this shell. I'm guessing, but maybe if you try to switch to the bash shell you can do what you are trying with the "declare -f home" command. Just a thought.

Michael Cunningham

saeedamer · 03-28-2012, 01:58 PM

Quote:

Originally Posted by instrumentpilot

saeedamer, just for kicks I did

type declare

It comes back with "declare is a shell builtin".

I am running the /bin/bash shell so maybe you are not seeing the declare feature due to not being in this shell. I'm guessing, but maybe if you try to switch to the bash shell you can do what you are trying with the "declare -f home" command. Just a thought.

Michael Cunningham

Thanks Michael but I am unable to change the shell. I get this:

Code:

$ cat /etc/shells
/bin/csh
/bin/ksh
/bin/psh
/bin/tsh
/bin/bsh
/usr/bin/csh
/usr/bin/ksh
/usr/bin/psh
/usr/bin/tsh
/usr/bin/bsh
$ . /bin/bsh
ksh: 0403-057 Syntax error: `;' is not expected.
$ . /usr/bin/bsh
ksh: 0403-057 Syntax error: `;' is not expected.
$ bash
ksh: bash:  not found.
$

Besides, I don't need to know the type of DEV12 but its source code.

Thanks

catkin · 03-28-2012, 02:54 PM

What is the value of $FPATH? If it is a list of directories, is there a file called DEV12 in one of them?

If $ENV is set, is the function defined in the file it names?

What happens if you run set -xv and then run DEV12?

Do you see the function being defined if you run ksh -xv ?

colucix · 03-28-2012, 03:09 PM

Indeed information on the system and the shell is relevant in this case.

Code:

typeset -f home

should show the code of the home function. Also try

Code:

typeset -f

without arguments. What does it show?

saeedamer · 03-29-2012, 06:48 AM

Quote:

Originally Posted by colucix

Indeed information on the system and the shell is relevant in this case.

Code:

typeset -f home

should show the code of the home function. Also try

Code:

typeset -f

without arguments. What does it show?

"typeset -f home" did the job - Thank you so much!!

Here is what it did (and this is exactly what I was looking for:

Code:

$ typeset -f home
function home
{
export ORACLE_HOME=/su01/app/oracle/product/10.2.0/db_1
echo $ORACLE_HOME
}
$

Thank you (specially) and thanks to everyone who spent time and tried to help me out - thank you everyone!!!

Reuti · 03-30-2012, 06:23 AM

Quote:

Originally Posted by saeedamer

Code:

$ cat /etc/shells
/bin/csh
/bin/ksh
/bin/psh
/bin/tsh
/bin/bsh
/usr/bin/csh
/usr/bin/ksh
/usr/bin/psh
/usr/bin/tsh
/usr/bin/bsh
$ . /bin/bsh
ksh: 0403-057 Syntax error: `;' is not expected.
$ . /usr/bin/bsh
ksh: 0403-057 Syntax error: `;' is not expected.
$ bash
ksh: bash:  not found.
$

NB: Although it really looks like bash isn’t there: there is the command chsh to change your own login shell and on the AIX system I have access to it lists more than in /etc/shells.