Excuting a script from a powerhouse program by sourcing it (w
as: Run command temp.sh)
Fry, Mark
Mark.Fry@COGNOS.com
Thu, 15 May 2003 09:16:35 +0100
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Hi Karen,
You want to execute temp.sh in the same shell? Hmmm... The problem is that
when you issue a RUN COMMAND, your current process is not in the original
shell, but rather a child of the quick process used to fire up the screen in
the first place. If you want your command to run in a shell, you have to
ask for it (ie fork a new shell below your quick process by doing RUN
COMMAND "sh -c '. temp.sh'"). Of course, as soon as the RUN COMMAND has
finished, you drop back to the quick process (ie your screen) and lose
whatever variables were set in your forked shell.
>From within your screen, you cannot make changes to the original shell you
were in before you started the screen, as it is the parent process of your
screen, which in turn is the parent process of whatever you ask for in your
RUN COMMAND. You can see this effectively if you issue a RUN COMMAND "ksh"
from quick. When you run the command, you fork a new shell. It's parent is
not your original shell, but rather the quick process for your screen (do a
ps -f to see this).
Looks like you will need to source temp.sh before you launch quick.
Hope this clarifies things a bit.
Cheers!
Mark Fry
Mark.Fry@Cognos.com
-----Original Message-----
From: karen d'souza [mailto:kaz_dsouza@yahoo.com]
Sent: 15 May 2003 05:45
To: Darren Reely
Cc: 'powerh-l@lists.swau.edu'
Subject: Excuting a script from a powerhouse program by sourcing it (was:
Run command temp.sh)
Apologies for the messedup subject, will take care next time onwards.
> run command "temp.sh" &
Yes, this will run tem.sh, but the shell does so by forking a new process,
due to which my exported variables from temp.sh are lost. I am trying to do
`. temp.sh', as I want to execute temp.sh in the _same_ shell. Is there a
way I can run temp.sh in the same shell ?
Thanks in advance.
Karen.
Darren Reely <darren.reely@latticesemi.com> wrote:
First, will you _PLEASE_ put proper subject descriptions in you e-mails.
It is impossible to keep track of your requests.
Here is a sample from my code.
run command "chmod +x temp.sh" on error continue
run command "temp.sh" &
clear lines 20 to 23 &
on error continue response
Notice I have no period & space as your sample does. Perhaps you
intended your space to be a forward slash?
Darren.
P.S. I'm running Solaris Unix.
karen d'souza wrote:
>
> I am using
> RUN COMMAND ". temp.sh"
>
> At run time it throws an error message execution permission denied
> even after giving all permissions to the file temp.sh.
>
> I am working on HP-UX.
>
> Any suggestions
> ------------------------------------------------------------------------
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<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff size=2>Hi
Karen,</FONT></SPAN></DIV>
<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff size=2>You
want to execute temp.sh in the same shell? Hmmm... The problem is
that when you issue a RUN COMMAND, your current process is not in the
original shell, but rather a child of the quick process used to fire
up the screen in the first place. If you want your command to run in
a shell, you have to ask for it (ie fork a new shell below your quick process by
doing </FONT></SPAN><SPAN class=696594707-15052003><FONT face=Arial
color=#0000ff size=2>RUN COMMAND "sh -c '. temp.sh'"). Of course, as soon
as the RUN COMMAND has finished, you drop back to the quick process (ie your
screen) and lose whatever variables were set in your forked
shell.</FONT></SPAN></DIV>
<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff size=2>From
within your screen, you cannot make changes to the original shell you were
in before you started the screen, as it is the parent process of your screen,
which in turn is the parent process of whatever you ask for in your RUN
COMMAND. You can see this effectively if you issue a RUN COMMAND "ksh"
from quick. When you run the command, you fork a new shell. It's
parent is not your original shell, but rather the quick process for your screen
(do a ps -f to see this).</FONT></SPAN></DIV>
<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff size=2>Looks
like you will need to source temp.sh before you launch
quick.</FONT></SPAN></DIV>
<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff size=2>Hope
this clarifies things a bit.</FONT></SPAN></DIV>
<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff
size=2>Cheers!</FONT></SPAN></DIV>
<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff size=2>Mark
Fry</FONT></SPAN></DIV>
<DIV><SPAN class=696594707-15052003><FONT face=Arial color=#0000ff
size=2>Mark.Fry@Cognos.com</FONT></SPAN></DIV>
<BLOCKQUOTE>
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> karen d'souza
[mailto:kaz_dsouza@yahoo.com]<BR><B>Sent:</B> 15 May 2003 05:45<BR><B>To:</B>
Darren Reely<BR><B>Cc:</B> 'powerh-l@lists.swau.edu'<BR><B>Subject:</B>
Excuting a script from a powerhouse program by sourcing it (was: Run command
temp.sh)<BR><BR></FONT></DIV>
<DIV>
<DIV>Apologies for the messedup subject, will take care next time
onwards.</DIV>
<DIV> </DIV>
<DIV>> run command "temp.sh" &<BR></DIV>
<DIV>Yes, this will run tem.sh, but the shell does so by forking a new
process, due to which my exported variables from temp.sh are lost. I am trying
to do `. temp.sh', as I want to execute temp.sh in the _same_ shell. Is there
a way I can run temp.sh in the same shell ?</DIV>
<DIV> </DIV>
<DIV>Thanks in advance.</DIV>
<DIV> </DIV>
<DIV>Karen.</DIV><BR><BR><B><I>Darren Reely
<darren.reely@latticesemi.com></I></B> wrote:
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">First,
will you _PLEASE_ put proper subject descriptions in you e-mails. <BR>It is
impossible to keep track of your requests.<BR><BR>Here is a sample from my
code.<BR><BR>run command "chmod +x temp.sh" on error continue<BR>run command
"temp.sh" &<BR>clear lines 20 to 23 &<BR>on error continue
response<BR><BR>Notice I have no period & space as your sample does.
Perhaps you <BR>intended your space to be a forward
slash?<BR><BR>Darren.<BR>P.S. I'm running Solaris Unix.<BR><BR>karen d'souza
wrote:<BR><BR>> <BR>> I am using<BR>> RUN COMMAND ".
temp.sh"<BR>> <BR>> At run time it throws an error message execution
permission denied <BR>> even after giving all permissions to the file
temp.sh.<BR>> <BR>> I am working on HP-UX.<BR>> <BR>> Any
suggestions<BR>>
------------------------------------------------------------------------<BR>>
Do you Yahoo!?<B! R>> The New Yahoo! Search <BR>> <HTTP:
us.rd.yahoo.com search mailsig *http: search.yahoo.com>- <BR>> Faster.
Easier. Bingo. <BR><BR><BR></BLOCKQUOTE></DIV>
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