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Shell Programming and Scripting

Determining if session is a login session

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Top Forums Shell Programming and Scripting Determining if session is a login session
# 1  
Old 03-02-2010
Determining if session is a login session
Besides 'who am i' and 'tty' what commands could be used to determine if a session is interactive as compared to a web process or cron process. Any command should work with the common unix variants.
# 2  
Old 03-02-2010
maybe you can use : ps -fu username
# 3  
Old 03-03-2010
The command "who am i" and "tty" will both fail when run from cron because there is no terminal context.

This test will tell you whether you have terminal context. See "man test".

Code:
if [ -t 1 ]
then
        echo "I have terminal context"
else
        echo "I do not have terminal context"
fi

# 4  
Old 03-03-2010
The problem was that the program would not run if it was not run from a terminal session.
Read the manual, and found that the terminal can be spoofed with an environment variable. Problem solved.
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