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Help: run with another user, env disappear

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# 1  
Old 04-22-2016
Help: run with another user, env disappear
Code:
#!/bin/sh
PATH_1=$PATH
echo "PATH_1 is " $PATH_1
function user_func (){
  whoami
  export PATH=$PATH_1:/usr/local/bin
  echo "PATH is" $PATH
  exit
}
export -f user_func
su -m hadoop -c 'user_func'

from out put, PATH is not set with PATH_1 append ( it's not another user to run the script, it's the user "hadoop" inside the script to run the function 'user_func' )
Code:
PATH_1 is  /usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin
hadoop
PATH is /bin:/usr/bin

Last edited by yanglei_fage; 04-22-2016 at 11:08 PM..
# 2  
Old 04-22-2016
I believe that if you add echo for testing:

Code:
function user_func (){
  whoami
  echo "PATH_1 = :$PATH_1:"
  export PATH=$PATH_1:/usr/local/bin
  echo "PATH is" $PATH
  exit
}

You will see that PATH_1 is not in scope in the function. This is my guess - I do not know much about your environment like OS and shell, or what the other user's .profile or .bashrc may have in it.
# 3  
Old 04-22-2016
Quote:
Originally Posted by jim mcnamara
I believe that if you add echo for testing:

Code:
function user_func (){
  whoami
  echo "PATH_1 = :$PATH_1:"
  export PATH=$PATH_1:/usr/local/bin
  echo "PATH is" $PATH
  exit
}

You will see that PATH_1 is not in scope in the function. This is my guess - I do not know much about your environment like OS and shell, or what the other user's .profile or .bashrc may have in it.

nothing special in my .profile or bashrc, I'm using ubuntu
# 4  
Old 04-22-2016
That is not what I am saying. You indicated:
1.another user had trouble running the script
2. PATH_1 was apparently not showing up in the output as expected

Answer:
When run by another user the PATH_1 variable was not in scope inside the function.

Has nothing to do with your personal profile settings

What I would do and we have set on many machines:

Code:
export PATH=${PATH}:/usr/local/bin

No functions required.
# 5  
Old 04-22-2016
Quote:
Originally Posted by jim mcnamara
That is not what I am saying. You indicated:
1.another user had trouble running the script
2. PATH_1 was apparently not showing up in the output as expected

Answer:
When run by another user the PATH_1 variable was not in scope inside the function.

Has nothing to do with your personal profile settings

What I would do and we have set on many machines:

Code:
export PATH=${PATH}:/usr/local/bin

No functions required.
there is misunderstanding here
it's not antoher user to run the script, it's another user to run the function
you can check my code "su -m hadoop -c 'user_func' ", hadoop is another user that I mentioned
# 6  
Old 04-23-2016
Okay.
PATH_1 is not being translated as anything, as presented, it is NOT defined in the function because it is not in scope inside the function. I would guess it needs to be exported.
Last edited by jim mcnamara; 04-23-2016 at 01:52 AM..
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