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  2. chmod - Wikipedia

    en.wikipedia.org/wiki/Chmod

    chmod u=rw,g=r,o= internalPlan.txt: Sets read and write permission for user, sets read for Group, and denies access for Others: chmod -R u+w,go-w docs: Adds write permission to the directory docs and all its contents (i.e. Recursively) for owner, and removes write permission for group and others chmod ug=rw groupAgreements.txt

  3. File-system permissions - Wikipedia

    en.wikipedia.org/wiki/File-system_permissions

    When a file with setuid is executed, the resulting process will assume the effective user ID given to the owner class. This enables users to be treated temporarily as root (or another user). The set group ID, setgid, or SGID permission. When a file with setgid is executed, the resulting process will assume the group ID given to the group class ...

  4. umask - Wikipedia

    en.wikipedia.org/wiki/Umask

    Generally, the mask only affects file permissions during the creation of new files and has no effect when file permissions are changed in existing files; however, the chmod command will check the mask when the mode options are specified using symbolic mode and a reference to a class of users is not specified. The mask is stored as a group of bits.

  5. Sticky bit - Wikipedia

    en.wikipedia.org/wiki/Sticky_bit

    If a 0410 a.out executable file has the sticky bit (mode bit 01000) set, the operating system will not delete the program text from the swap area when the last user process terminates. If a 0413 a.out or ELF executable file has the sticky bit set, the operating system will not delete the program text from memory when the last user process ...

  6. Filesystem in Userspace - Wikipedia

    en.wikipedia.org/wiki/Filesystem_in_Userspace

    The program is also used to mount the new file system. At the time the file system is mounted, the handler is registered with the kernel. If a user now issues read/write/stat requests for this newly mounted file system, the kernel forwards these IO-requests to the handler and then sends the handler's response back to the user.

  7. Create, delete, or rename folders in AOL Mail - AOL Help

    help.aol.com/articles/create-delete-or-rename...

    1. Mouse over the folder you want to add a subfolder to. 2. Click the Folder Options icon . 3. Select Create subfolder. 4. Enter a new subfolder name. 5. Click the Save icon.

  8. Filesystem Hierarchy Standard - Wikipedia

    en.wikipedia.org/wiki/Filesystem_Hierarchy_Standard

    Filesystem hierarchy in openSUSE. In the FHS, all files and directories appear under the root directory /, even if they are stored on different physical or virtual devices.. Some of these directories only exist in a particular system if certain subsystems, such as the X Window System, are instal

  9. chattr - Wikipedia

    en.wikipedia.org/wiki/Chattr

    chattr is the command in Linux that allows a user to set certain attributes of a file. lsattr is the command that displays the attributes of a file.. Most BSD-like systems, including macOS, have always had an analogous chflags command to set the attributes, but no command specifically meant to display them; specific options to the ls command are used instead.