Solaris Shell Scripting


 
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Operating Systems Solaris Solaris Shell Scripting
# 1  
Old 04-07-2017
Solaris Shell Scripting

Hi,

Want to know, is there any way to restrict a Solaris user to Single Login. Means a particular user can login once and if he or someone else tries to login with his ID then a message displayed "user already logged in" and denies his attempt.

Regard,

Jeet
# 2  
Old 04-07-2017
sh,ksh,bash login shell? Put the following to the user's .profile
Code:
logins=`\who -u | \awk '$1==u&&$NF!~/^\(?:[0-9]+\..\)?$/{++s}END{print s+0}' u="$USER"`
[ $logins -gt 1 ] && exec echo "user already logged in"

tcsh,csh login shell? Put the following to the user's .login
Code:
set logins=`\who -u | \awk '$1==u&&$NF!~/^\(?:[0-9]+\..\)?$/{++s}END{print s+0}' u="$USER"`
if ( $logins > 1 ) exec echo "user already logged in"

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