Main usages of mask [on hold]
Clash Royale CLAN TAG#URR8PPP
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I understand that mask is any bit stream used for bitwise operations (hence, often called bitmask) and that one could execute a mask upon basically any type of code.
I also understand that a umask is any mask executed for the sake of changing permissions of a file in Linux.
Thus I understand a mask to be a basic general component of Information Security in *nix operating systems.
Are there any other important use cases of mask streams?
shell security utilities umask terminology
asked yesterday
JohnDoea
100730
put on hold as unclear what you're asking by JdeBP, Jeff Schaller, thrig, mosvy, JigglyNaga 9 hours ago
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
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up vote
-5
down vote
favorite
I understand that mask is any bit stream used for bitwise operations (hence, often called bitmask) and that one could execute a mask upon basically any type of code.
I also understand that a umask is any mask executed for the sake of changing permissions of a file in Linux.
Thus I understand a mask to be a basic general component of Information Security in *nix operating systems.
Are there any other important use cases of mask streams?
shell security utilities umask terminology
asked yesterday
JohnDoea
100730
put on hold as unclear what you're asking by JdeBP, Jeff Schaller, thrig, mosvy, JigglyNaga 9 hours ago
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
Why do you think that it does?
– JdeBP
yesterday
I thinked it might be due to different names and also because I once read about it and didn't find a clear example of a difference (due to lack of background knowledge at the time)... I don't think it's worth discussing...
– JohnDoea
14 hours ago
You've asked twice, now, how a file creation mask is not a mask. Both times, people have asked in several ways why you think that to even be the case. You did not explain in the deleted question, and you aren't really explaining here. Do not be surprised that the repeated question gains no traction.
– JdeBP
13 hours ago
I think I explained it above and the explanation doesn't satisfy you; go on, downvote more and more of my questions. Very helpful and communal.
– JohnDoea
10 hours ago
I wouldn't call a bit mask a 'stream' (though if you're into streams, you can treat everything as a stream). There's no difference between a bitmask and the umask; the latter is just a bitmask describing what permission to turn off when creating a file. You're like what difference is between a spade and and spade used to dig a grave.
– mosvy
9 hours ago
 |Â
show 2 more comments
up vote
-5
down vote
favorite
up vote
-5
down vote
favorite
I understand that mask is any bit stream used for bitwise operations (hence, often called bitmask) and that one could execute a mask upon basically any type of code.
I also understand that a umask is any mask executed for the sake of changing permissions of a file in Linux.
Thus I understand a mask to be a basic general component of Information Security in *nix operating systems.
Are there any other important use cases of mask streams?
shell security utilities umask terminology
asked yesterday
JohnDoea
100730
I understand that mask is any bit stream used for bitwise operations (hence, often called bitmask) and that one could execute a mask upon basically any type of code.
I also understand that a umask is any mask executed for the sake of changing permissions of a file in Linux.
Thus I understand a mask to be a basic general component of Information Security in *nix operating systems.
Are there any other important use cases of mask streams?
shell security utilities umask terminology
shell security utilities umask terminology
asked yesterday
JohnDoea
100730
asked yesterday
JohnDoea
100730
edited 10 mins ago
asked yesterday
JohnDoea
100730
asked yesterday
JohnDoea
100730
asked yesterday
JohnDoea
100730
100730
put on hold as unclear what you're asking by JdeBP, Jeff Schaller, thrig, mosvy, JigglyNaga 9 hours ago
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
put on hold as unclear what you're asking by JdeBP, Jeff Schaller, thrig, mosvy, JigglyNaga 9 hours ago
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
Why do you think that it does?
– JdeBP
yesterday
I thinked it might be due to different names and also because I once read about it and didn't find a clear example of a difference (due to lack of background knowledge at the time)... I don't think it's worth discussing...
– JohnDoea
14 hours ago
You've asked twice, now, how a file creation mask is not a mask. Both times, people have asked in several ways why you think that to even be the case. You did not explain in the deleted question, and you aren't really explaining here. Do not be surprised that the repeated question gains no traction.
– JdeBP
13 hours ago
I think I explained it above and the explanation doesn't satisfy you; go on, downvote more and more of my questions. Very helpful and communal.
– JohnDoea
10 hours ago
I wouldn't call a bit mask a 'stream' (though if you're into streams, you can treat everything as a stream). There's no difference between a bitmask and the umask; the latter is just a bitmask describing what permission to turn off when creating a file. You're like what difference is between a spade and and spade used to dig a grave.
– mosvy
9 hours ago
 |Â
show 2 more comments
Why do you think that it does?
– JdeBP
yesterday
I thinked it might be due to different names and also because I once read about it and didn't find a clear example of a difference (due to lack of background knowledge at the time)... I don't think it's worth discussing...
– JohnDoea
14 hours ago
You've asked twice, now, how a file creation mask is not a mask. Both times, people have asked in several ways why you think that to even be the case. You did not explain in the deleted question, and you aren't really explaining here. Do not be surprised that the repeated question gains no traction.
– JdeBP
13 hours ago
I think I explained it above and the explanation doesn't satisfy you; go on, downvote more and more of my questions. Very helpful and communal.
– JohnDoea
10 hours ago
I wouldn't call a bit mask a 'stream' (though if you're into streams, you can treat everything as a stream). There's no difference between a bitmask and the umask; the latter is just a bitmask describing what permission to turn off when creating a file. You're like what difference is between a spade and and spade used to dig a grave.
– mosvy
9 hours ago
Why do you think that it does?
– JdeBP
yesterday
Why do you think that it does?
– JdeBP
yesterday
I thinked it might be due to different names and also because I once read about it and didn't find a clear example of a difference (due to lack of background knowledge at the time)... I don't think it's worth discussing...
– JohnDoea
14 hours ago
I thinked it might be due to different names and also because I once read about it and didn't find a clear example of a difference (due to lack of background knowledge at the time)... I don't think it's worth discussing...
– JohnDoea
14 hours ago
You've asked twice, now, how a file creation mask is not a mask. Both times, people have asked in several ways why you think that to even be the case. You did not explain in the deleted question, and you aren't really explaining here. Do not be surprised that the repeated question gains no traction.
– JdeBP
13 hours ago
You've asked twice, now, how a file creation mask is not a mask. Both times, people have asked in several ways why you think that to even be the case. You did not explain in the deleted question, and you aren't really explaining here. Do not be surprised that the repeated question gains no traction.
– JdeBP
13 hours ago
I think I explained it above and the explanation doesn't satisfy you; go on, downvote more and more of my questions. Very helpful and communal.
– JohnDoea
10 hours ago
I think I explained it above and the explanation doesn't satisfy you; go on, downvote more and more of my questions. Very helpful and communal.
– JohnDoea
10 hours ago
I wouldn't call a bit mask a 'stream' (though if you're into streams, you can treat everything as a stream). There's no difference between a bitmask and the umask; the latter is just a bitmask describing what permission to turn off when creating a file. You're like what difference is between a spade and and spade used to dig a grave.
– mosvy
9 hours ago
I wouldn't call a bit mask a 'stream' (though if you're into streams, you can treat everything as a stream). There's no difference between a bitmask and the umask; the latter is just a bitmask describing what permission to turn off when creating a file. You're like what difference is between a spade and and spade used to dig a grave.
– mosvy
9 hours ago
 |Â
show 2 more comments
2 Answers
2
active
oldest
votes
up vote
0
down vote
umask is used to set the mask.
answered yesterday
AsenM
3837
Did you mean to say it is a utility ?
– JohnDoea
14 hours ago
What i meant to say is you use umask command to set mask permissions.
– AsenM
14 hours ago
add a comment |Â
up vote
0
down vote
In Linux the default file permission is 0644, default directory permission is 0755 and default umask is 0022.
Now, as the full permission of a file is 0666, the default permission came from (0666 - 0022 = 0644) and for directory it is (0777 - 0022 = 0755).
You can set the mask using #umask 0000, and it will create files and directories with full 666/777 permission (which is very insecure though).
edited 13 hours ago
JohnDoea
100730
answered yesterday
al mamun
4519
Hello Al Mamum. I think this question should be deleted. You might want to copy the answer and save it in an ODT on your computer, or you'd like to post a question+answer with this answer.
– JohnDoea
10 hours ago
add a comment |Â
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
umask is used to set the mask.
answered yesterday
AsenM
3837
Did you mean to say it is a utility ?
– JohnDoea
14 hours ago
What i meant to say is you use umask command to set mask permissions.
– AsenM
14 hours ago
add a comment |Â
up vote
0
down vote
umask is used to set the mask.
answered yesterday
AsenM
3837
Did you mean to say it is a utility ?
– JohnDoea
14 hours ago
What i meant to say is you use umask command to set mask permissions.
– AsenM
14 hours ago
add a comment |Â
up vote
0
down vote
up vote
0
down vote
umask is used to set the mask.
answered yesterday
AsenM
3837
umask is used to set the mask.
answered yesterday
AsenM
3837
answered yesterday
AsenM
3837
answered yesterday
AsenM
3837
answered yesterday
AsenM
3837
3837
Did you mean to say it is a utility ?
– JohnDoea
14 hours ago
What i meant to say is you use umask command to set mask permissions.
– AsenM
14 hours ago
add a comment |Â
Did you mean to say it is a utility ?
– JohnDoea
14 hours ago
What i meant to say is you use umask command to set mask permissions.
– AsenM
14 hours ago
Did you mean to say it is a utility ?
– JohnDoea
14 hours ago
Did you mean to say it is a utility ?
– JohnDoea
14 hours ago
What i meant to say is you use umask command to set mask permissions.
– AsenM
14 hours ago
What i meant to say is you use umask command to set mask permissions.
– AsenM
14 hours ago
add a comment |Â
up vote
0
down vote
In Linux the default file permission is 0644, default directory permission is 0755 and default umask is 0022.
Now, as the full permission of a file is 0666, the default permission came from (0666 - 0022 = 0644) and for directory it is (0777 - 0022 = 0755).
You can set the mask using #umask 0000, and it will create files and directories with full 666/777 permission (which is very insecure though).
edited 13 hours ago
JohnDoea
100730
answered yesterday
al mamun
4519
Hello Al Mamum. I think this question should be deleted. You might want to copy the answer and save it in an ODT on your computer, or you'd like to post a question+answer with this answer.
– JohnDoea
10 hours ago
add a comment |Â
up vote
0
down vote
In Linux the default file permission is 0644, default directory permission is 0755 and default umask is 0022.
Now, as the full permission of a file is 0666, the default permission came from (0666 - 0022 = 0644) and for directory it is (0777 - 0022 = 0755).
You can set the mask using #umask 0000, and it will create files and directories with full 666/777 permission (which is very insecure though).
edited 13 hours ago
JohnDoea
100730
answered yesterday
al mamun
4519
Hello Al Mamum. I think this question should be deleted. You might want to copy the answer and save it in an ODT on your computer, or you'd like to post a question+answer with this answer.
– JohnDoea
10 hours ago
add a comment |Â
up vote
0
down vote
up vote
0
down vote
In Linux the default file permission is 0644, default directory permission is 0755 and default umask is 0022.
Now, as the full permission of a file is 0666, the default permission came from (0666 - 0022 = 0644) and for directory it is (0777 - 0022 = 0755).
You can set the mask using #umask 0000, and it will create files and directories with full 666/777 permission (which is very insecure though).
edited 13 hours ago
JohnDoea
100730
answered yesterday
al mamun
4519
In Linux the default file permission is 0644, default directory permission is 0755 and default umask is 0022.
Now, as the full permission of a file is 0666, the default permission came from (0666 - 0022 = 0644) and for directory it is (0777 - 0022 = 0755).
You can set the mask using #umask 0000, and it will create files and directories with full 666/777 permission (which is very insecure though).
edited 13 hours ago
JohnDoea
100730
answered yesterday
al mamun
4519
edited 13 hours ago
JohnDoea
100730
edited 13 hours ago
JohnDoea
100730
edited 13 hours ago
JohnDoea
100730
100730
answered yesterday
al mamun
4519
answered yesterday
al mamun
4519
answered yesterday
al mamun
4519
4519
Hello Al Mamum. I think this question should be deleted. You might want to copy the answer and save it in an ODT on your computer, or you'd like to post a question+answer with this answer.
– JohnDoea
10 hours ago
add a comment |Â
Hello Al Mamum. I think this question should be deleted. You might want to copy the answer and save it in an ODT on your computer, or you'd like to post a question+answer with this answer.
– JohnDoea
10 hours ago
Hello Al Mamum. I think this question should be deleted. You might want to copy the answer and save it in an ODT on your computer, or you'd like to post a question+answer with this answer.
– JohnDoea
10 hours ago
Hello Al Mamum. I think this question should be deleted. You might want to copy the answer and save it in an ODT on your computer, or you'd like to post a question+answer with this answer.
– JohnDoea
10 hours ago
add a comment |Â
Why do you think that it does?
– JdeBP
yesterday
I thinked it might be due to different names and also because I once read about it and didn't find a clear example of a difference (due to lack of background knowledge at the time)... I don't think it's worth discussing...
– JohnDoea
14 hours ago
You've asked twice, now, how a file creation mask is not a mask. Both times, people have asked in several ways why you think that to even be the case. You did not explain in the deleted question, and you aren't really explaining here. Do not be surprised that the repeated question gains no traction.
– JdeBP
13 hours ago
I think I explained it above and the explanation doesn't satisfy you; go on, downvote more and more of my questions. Very helpful and communal.
– JohnDoea
10 hours ago
I wouldn't call a bit mask a 'stream' (though if you're into streams, you can treat everything as a stream). There's no difference between a bitmask and the umask; the latter is just a bitmask describing what permission to turn off when creating a file. You're like what difference is between a spade and and spade used to dig a grave.
– mosvy
9 hours ago