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What it means $who >> $logfile 2>&1 ?


 
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Operating Systems Linux Ubuntu What it means $who >> $logfile 2>&1 ?
# 1  
Old 08-19-2009
Java What it means $who >> $logfile 2>&1 ?

could you explain me what its exactly will do?Smilie
# 2  
Old 08-19-2009
$who and $logfile = a script variable, defined by the writer. Would have to see more of the script to tell you.

>> = append the output of a command (or in your case, value of the $who variable) to the end of a file.

2>&1 means to direct both STDOUT and STDERR to the same place, typically for logging purposes or even to suppress output of a script (like with cron)

In conclusion, it will append STDOUT and STDERR of $who to $logfile

Last edited by chompy; 08-19-2009 at 03:34 AM.. Reason: Forgot my conclusion

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