lost standart input after su - <user>


 
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Operating Systems HP-UX lost standart input after su - <user>
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Old 06-14-2006
lost standart input after su - <user>

All,
hope somebody can help here:

wrote a small shell script running under root on //usr/bin/ksh
no specialisties in the profile.
Then the test script:
-------------------------------------------
echo "Now we start, press any key..."
read
su - test -c "id | wc -l" 2>/tmp/x
echo "DONE!!!"
read

--------------------------------------------
This script hangs after "echo DONE!!!"
I have to kill the shell to proceed. It works with:


-------------------------------------------
echo "Now we start, press any key..."
read
su - test -c "id" 2>/tmp/x
echo "DONE!!!"
read

--------------------------------------------

The pipe seems the problem. I the file /tmp/x I get then "Not a terminal"
the user "test" uses /usr/bin/ksh
Extract from /etc/passwd:
test:xxxxxxxxxx:105:20:,,,:/home/test:/usr/bin/ksh
Also a blank profile.

Can somebody verify / help?

Would be greatly appreceated.

Thanks
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ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD