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The command chown / ˈ tʃ oʊ n /, an abbreviation of change owner, is used on Unix and Unix-like operating systems to change the owner of file system files and directories. Unprivileged (regular) users who wish to change the group membership of a file that they own may use chgrp. The ownership of any file in the system may only be altered by ...
Throughout this section, user refers to the owner of the file, as a reminder that the symbolic form of the command uses "u", to avoid confusion with "other". Note that only the user or the superuser (root) is able to change file permissions. chmod [options] mode[,mode] file1 [file2 ...] [7] Usually implemented options include:
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 ...
The Unix and Linux access rights flags setuid and setgid (short for set user identity and set group identity) [1] allow users to run an executable with the file system permissions of the executable's owner or group respectively and to change behaviour in directories. They are often used to allow users on a computer system to run programs with ...
The filesystem appears as one rooted tree of directories. [1] Instead of addressing separate volumes such as disk partitions, removable media, and network shares as separate trees (as done in DOS and Windows: each drive has a drive letter that denotes the root of its file system tree), such volumes can be mounted on a directory, causing the volume's file system tree to appear as that directory ...
chattr — Change file attributes on a Linux file system. chgrp — Change group of one or more files. chmod — Change mode of listed files. chown — Change owner of one or more files. chpasswd; chpst; chroot — Run command within a new root directory. chrt; chvt; cksum — For each file, output crc32 checksum value, length and name of file.
When you get a message from a "MAILER-DAEMON" or a "Mail Delivery Subsystem" with a subject similar to "Failed Delivery," this means that an email you sent was undeliverable and has been bounced back to you.
chgrp — Change group of one or more files. chmod — Change mode of listed files. chown — Change owner of one or more files. chroot — Run command within a new root directory. chrt — Get/set a process' real-time scheduling policy and priority. chsh — Change your login shell. chvt — Change to virtual terminal number N. cksum — For ...