lost standart input after su - <user>


 
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Operating Systems HP-UX lost standart input after su - <user>
# 1  
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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shells(4)							   File Formats 							 shells(4)

NAME
shells - shell database SYNOPSIS
/etc/shells DESCRIPTION
The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser- shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root. A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by the routines which search the file. Blank lines are also ignored. The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/pfcsh, /bin/pfksh, /bin/pfsh, /bin/sh, /bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/pfcsh, /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh. Note that /etc/shells overrides the default list. Invalid shells in /etc/shells may cause unexpected behavior (such as being unable to log in by way of ftp(1)). FILES
/etc/shells lists shells on system SEE ALSO
vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4) SunOS 5.10 4 Jun 2001 shells(4)