linux umask 022

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umask values and permissions for files and directories 1.1-r parameter Setting directory permissions (chmod)650) this.width=650; "src=" Https://s1.51cto.com/wyfs02/M00/92/E8/wKioL1kE0rqgJo_gAAJVm7FRtqw248.png "title=" QQ picture 20170429225829.png

On the umask value of Linux system and its corresponding file permission explanationOriginal: http://blog.51cto.com/oldboy/1060032Origin:1, this article is written in particular to thank the 51cto blog staff and leadership, the old boy blog is

Old boy Linux OPS trainingThe core thoughts of the old boys ' education and teaching 6: Re-goal, re-thinking, method, practice, habit, re-summaryLife-long learning, the old boy education to achieve your starting point!Believe that you believe in the

A permission mask umaskUmask is supported by chmod. It has a total of four bits (gid/uid, owner, group permission, and permissions of other users), but the last three are usually used, for example, if you use chmod 755 file (the permission for this

Default Permissions: umask, file system, special permissions, and umaskChapter 4 permission errors 1st common user ls/root/ /Root is a common root user and does not have any permissions, so it cannot be viewed. [Oldboy @ znix ~] $ Ls/root/ Ls:

The Umask value is used to set the user's default permissions when creating a file, and when we create a directory or file in the system, the default permissions for the directory or file are determined by the Umask value.For the root user, the

The Umask value is used to set the user's default permissions when creating a file, and when we create a directory or file in the system, the default permissions for the directory or file are determined by the Umask value.For the root user, the

Command for default permission assignment umask[Email protected] test]# mkdir newdir[email protected] test]# Touch NewFile[Email protected] test]# LS-LRTTotal 4Drwxr-xr-x. 2 root root 4096 Apr 17:07 newdir-rw-r--r--. 1 root root 0 Apr 17:08

A permission Mask umaskUmask is chmod matching, a total of 4 (Gid/uid, owner, group rights, other user's rights), but usually use the latter 3, for example, you use chmod 755 file (at this time the permissions of this document is the main read (4) +