Re: QSH RM

[Scott Klement <midrange-l@xxxxxxxxxxxxxxxx>]

Hi David,

There are two potential things that could be stopping your program.

1) the fact that QShell prints a message on the display will stop the 
program until someone presses ENTER.  This is so that you don't miss the 
message.

2) if your CL program is configured to treat non-zero exit status from 
QShell as an *ESCAPE message (via the QIBM_QSH_CMD_ESCAPE_MSG 
environment variable) then QShell will send an *ESCAPE message to your 
program, which would stop your program if not caught with a MONMSG.

Based on your symptoms, I'm guessing the former message is the culprit. 
 Please try coding the following in your CL program:


     ADDENVVAR ENVVAR(QIBM_QSH_CMD_OUTPUT) +
               VALUE(NONE) +
               REPLACE(*YES)

     ADDENVVAR ENVVAR(QIBM_QSH_CMD_ESCAPE_MSG) +
               VALUE(N) +
               REPLACE(*YES)

     QSH CMD('rm /myData/*')


The two environment variables (ADDENVVAR lines) change the way that 
QShell behaves.  The QIBM_QSH_CMD_OUTPUT one tells it not to print any 
output on the screen -- therefore, it won't stop and ask you to press 
enter.  The QIBM_QSH_CMD_ESCAPE_MSG tells it not to send an *ESCAPE 
message if the 'rm' command fails (when Unix commands fail, they set 
their exit status to non-zero, but if this envvar is set to Y, Qshell 
will convert that exit status to an *ESCAPE message sent to your CL)

Please understand that this also means that your program will not detect 
any errors.  For example, if it fails to delete 'file1' because of 
insufficient authority, your CL program will get no notification of that 
fact. (This is true of _any_ type of failure, authority is just an 
example.)

If you'd rather keep a log of QShell output (rather than discard it) you 
could do this:

     ADDENVVAR ENVVAR(QIBM_QSH_CMD_OUTPUT) +
               VALUE('FILE=/tmp/mylog.txt') +
               REPLACE(*YES)

If you do that, your program still won't stop, but, each time it runs, 
mylog.txt will be cleared, and the messages from QShell will be written 
to it.

If you'd rather it not be cleared (but rather have new messages appended 
to the end) you can do this instead:

     ADDENVVAR ENVVAR(QIBM_QSH_CMD_OUTPUT) +
               VALUE('FILEAPPEND=/tmp/mylog.txt') +
               REPLACE(*YES)

Hopefully you get the idea.

Regarding your second question about the strange error message:

rm: 001-2139 The object /myData/test is a directory. No such path or 
directory.

I can't explain this.  I suspect it's a bug...   When I try it myself, 
(v5r4) I get this somewhat different message:

rm: 001-2139 The object /home/klemscot/mydata/test is a directory. The 
specified descriptor does not reference a socket. 


My best guess is that it's a bug.  The "object is a directory" message 
is correct, but it's adding on spurious information (extra stuff that 
doesn't apply) to the end.


On 6/3/2010 5:53 AM, David FOXWELL wrote:
> Hi I'm running this command in a CLP :
>
> QSH        CMD('RM /myData/*')
>
> This empties /myData ok, but as the directory 'test' exists in myData, the program stops with  :
>
> rm: 001-2139 The object /myData/test is a directory. No such path or directory.
>
> I hit enter and everything's ok because I want the files in myData deleted without touching any subdirectories. How can I prevent the program from stopping? What does it mean by<No such path or directory>?
>
> Thanks.