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How to know who and where a variable is set ?

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Top Forums Shell Programming and Scripting How to know who and where a variable is set ?
# 1  
Old 05-18-2011
How to know who and where a variable is set ?
hi,

i'm not a root user and i want to know which user and in which file is loaded a variable seen in the "env" display ?

I will use this variable but i want to be sure that it will be a permanent variable !

i don't see it in my files (.profile , kshrc...) and neither in /etc/profile.

thanks for your help
Christian
# 2  
Old 05-18-2011
depends on the variable name, as some variables are defined by the shell being used. to help isolate what your are describing, let us know your operating system, shell in use and which variable are you concerned about. what do the following report?

Code:
uname
echo $SHELL

Last edited by unxscorob; 05-18-2011 at 08:58 PM.. Reason: verbosity
# 3  
Old 05-19-2011
There is a hierarchy of creating env variables.

AFAIK, it is
/etc/profile
various scripts in /etc/rc2.d
your files.

OK
# 4  
Old 05-19-2011
hi

i was searching for $USER but it seems to be a system variable and a permanent one

my shell is /usr/bin/ksh

thanks for your help
Christian
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