What was created to define a standard directory structure and common file location for linux?
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The Linux File Hierarchy Structure or the Filesystem Hierarchy Standard (FHS) defines the directory structure and directory contents in Unix-like operating systems. It is maintained by the Linux Foundation. Show
 1. / (Root): Primary hierarchy root and root directory of the entire file system hierarchy.
2. /bin : Essential command binaries that need to be available in single-user mode; for all users, e.g., cat, ls, cp.
3. /boot : Boot loader files, e.g., kernels, initrd.
4. /dev : Essential device files, e.g., /dev/null.
5. /etc : Host-specific system-wide configuration files.
6. /home : Users’ home directories, containing saved files, personal settings, etc.
7. /lib : Libraries essential for the binaries in /bin/ and /sbin/.
8. /media : Mount points for removable media such as CD-ROMs (appeared in FHS-2.3).
9. /mnt : Temporarily mounted filesystems.
10. /opt : Optional application software packages.
11. /sbin : Essential system binaries, e.g., fsck, init, route.
12. /srv : Site-specific data served by this system, such as data and scripts for web servers, data offered by FTP servers, and repositories for version control systems.
13. /tmp : Temporary files. Often not preserved between system reboots, and may be severely size restricted.
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/usr : Secondary hierarchy for read-only user data; contains the majority of (multi-)user utilities and applications.
15. /proc : Virtual filesystem providing process and kernel information as files. In Linux, corresponds to a procfs mount. Generally automatically generated and populated by the system, on the fly.
Modern Linux distributions include a /run directory as a temporary filesystem (tmpfs) which stores volatile runtime data, following the FHS version 3.0. According to the FHS version 2.3, such data were stored in /var/run but this was a problem in some cases because this directory is not always available at early boot. As a result, these programs have had to resort to trickery, such as using /dev/.udev, /dev/.mdadm, /dev/.systemd or /dev/.mount directories, even though the device directory isn’t intended for such data.Among other advantages, this makes the system easier to use normally with the root filesystem mounted read-only. For example, below are the changes Debian made in its 2013 Wheezy release:
?list=PLqM7alHXFySFc4KtwEZTANgmyJm3NqS_L Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above. What standard was created to define a standard file structure with common file locations for Linux?Linux file systems have a standard structure that is defined by the Filesystem Hierarchy Standard (FHS), as well as some other additions.
What are the three standard Linux permissions?read – The Read permission refers to a user's capability to read the contents of the file. write – The Write permissions refer to a user's capability to write or modify a file or directory. execute – The Execute permission affects a user's capability to execute a file or view the contents of a directory.
Which command can be used to create links for file or directory?Ln Command to Create Symbolic Links
By default, the ln command creates a hard link. Use the -s option to create a soft (symbolic) link. The -f option will force the command to overwrite a file that already exists. Source is the file or directory being linked to.
Does Linux only have one root directory per directory tree?Precede the string with a $. D. Precede the string with a ^. Linux has only one root directory per directory tree.
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