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What does chmod 1777 mean?


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What does chmod 1777 on a folder mean?
I know that chmod 777 means read/write/execute for everybody. What is the purpose of the additional '1'?


The 1 is the "stickc bit". If you perform an ls -l on that folder, you will see a 't' next to it.
The sticky bit 't' means:
'do not let anyone delete this folder or change it's permissions'


2008-03-11, 12:23:28
anonymous from Syrian Arab Republic  
thank you
2008-07-12, 07:01:52
anonymous from Germany  
2008-08-19, 10:42:31
anonymous from United States  

Thanks for the info.
2008-09-08, 08:18:41
anonymous from Guyana  
hey thanks.... I have an issue is it quit evident that chmod 777. can pose a security issue in that it has no restrictions, but when you are required to install a script that demands such permissions to be granted, then i posses another issue with your host provider... many hosts resist from changing ur permissions to this and som get no more than chmod 777...please shed som light on this issue .... anyone .

2009-05-26, 03:17:54
anonymous from Nepal  
2009-09-30, 02:04:54
anonymous from China  
2012-04-26, 00:50:11
anonymous from Netherlands  
2012-08-24, 14:22:03
anonymous from Brazil  
cara muito massa esse 1777
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