What is etc directory in linux

Where is etc folder in Linux?

The /etc directory contains configuration files, which can generally be edited by hand in a text editor. Note that the /etc/ directory contains system-wide configuration files – user-specific configuration files are located in each user’s home directory.

What is etc for Linux?

1.6. /etc. This is the nerve center of your system, it contains all system related configuration files in here or in its sub-directories. A “configuration file” is defined as a local file used to control the operation of a program; it must be static and cannot be an executable binary.

What are some Linux directories and their uses?

• / is the root directory.
• /bin/ and /usr/bin/ store user commands.
• /boot/ contains files used for system startup including the kernel.
• /dev/ contains device files.
• /etc/ is where configuration files and directories are located.
• /home/ is the default location for users‟ home directories.

What is the var folder in Linux?

/var is a standard subdirectory of the root directory in Linux and other Unix-like operating systems that contains files to which the system writes data during the course of its operation.

What does var folder stand for?

What are var files?

What is a VAR file? The VAR file type is primarily associated with Cokriging Software. These are programs needed to carry-out the spatial interpolation of agroclimatic variables with the technique of cokriging. Input to the VARIO function is file.

What is purpose of VAR in Linux?

Purpose. /var contains variable data files. This includes spool directories and files, administrative and logging data, and transient and temporary files. Some portions of /var are not shareable between different systems.

What should go in VAR?

/var This directory contains files which may change in size, such as spool and log files. /var/account Process accounting logs (optional). /var/adm This directory is superseded by /var/log and should be a symbolic link to /var/log. /var/backups Reserved for historical reasons. /var/cache Data cached for programs. /var/ …

What is TMP in Linux?

In Unix and Linux, the global temporary directories are /tmp and /var/tmp. Web browsers periodically write data to the tmp directory during page views and downloads. Typically, /var/tmp is for persistent files (as it may be preserved over reboots), and /tmp is for more temporary files.

What is the purpose of VAR?

The role of the VAR is to assist the referee to determine whether there was an infringement that means a goal should not be awarded. As the ball has crossed the line, play is interrupted so there is no direct impact on the game.

What’s wrong with VAR?

The main argument against the use of VAR is that it disrupts the way in which football is played. This momentary pause in action has been the subject of hefty debate amongst football fans nation-wide. The game’s flow and momentum are what drives football and set it apart from the stop-start nature of other sports.

What are the VAR rules?

VAR will be used only for “clear and obvious errors” or “serious missed incidents” in four match-changing situations: goals; penalty decisions; direct red-card incidents; and mistaken identity.

Can var overturn a penalty?

A decision can generally be overturned without an OFR where it relates to a factual matter. For example, offside decisions or whether a foul occurred inside or outside the penalty area can be determined by the VAR to the referee without a review.

Can var overturn the final whistle?

Games are allowed to be restarted following a VAR check, despite the referee having already blown his whistle to signal the end of the game. According to the International Football Association Board (IFAB), there are no time restrictions for reviewing incidents.

Who has VAR benefited the most?

This season, a total of 126 goals or incidents have been directly affected by the video ref. Last season, Brighton & Hove Albion benefited the most, while only Newcastle United didn’t experience a single overturn decision against them all season.

Can a penalty be awarded after final whistle?

Only Man United could score a penalty right after the final whistle was blown. Manchester United just scored a penalty to win the game after the referee blew the whistle for full time.

Can you score a rebound from a penalty?

You cannot attempt to score from a penalty rebound. You can only do so if another player on the pitch has touched the ball. Otherwise, an indirect free kick will be awarded to the other team. The rule applies to a penalty shootout as well, where you cannot play the ball a second time.

Can you score from kick off?

A goal may be scored directly from a kick-off against the opposing team. An own goal may not be scored directly from the kick-off; if the ball goes directly into the goal of the team taking the kick-off, a corner kick is awarded to the opposing team.

What is the 6 yard box for in football?

The goal area – colloquially known as the six yard box – serves a number of purposes. Its primary purpose is to designate the location from which goal kicks are to be taken.

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What does etc stand for?

What does the «etc» folder in the root directory stand for? I think knowing this will help me remember where certain files are located. Update: Might be useful for others, the folder is used for «Host specific configuration files» — reference.

A backronym I rather like is «Edit To Configure», but there is no history to suggest that this is a «real» meaning.

My guess would be history. Nobody really thought «Hey, we’re going to have a bunch of system-wide config data!» and so nobody ever created a directory for it. But, of course, there was, and everybody shoved it into /etc because there wasn’t anyplace else to put it. Poof! De-facto standard. You know that /usr was originally the place where user home directories were?

It’s also (slightly) interesting to note that older versions of Solaris and HP-UX (and maybe others that I’ve forgotten) actually had binaries in /etc too.

9 Answers 9

Originally, there was /bin for programs (essentially, executable binaries), and very soon /dev for device files and /lib for extra executable code loaded by programs (libraries). /usr also came in very early, first for user data, then as an extra OS area with its own bin and lib and then man containing the manual in electronic form. The source code was also often provided somewhere under /usr .

And there were a few files in the operating system that didn’t fit in any of the existing categories. This included a passwd file containing users’ passwords, and an mtab file written by mount , and the init and later rc programs executed at boot time, and over time more and more programs that were intended to be executed only for administration purpose and not as part of normal usage.

(You can browse some old Unix source code on the Unix Tree. Versions earlier than V6 are very fragmentary. You can also see V1 and V6 manuals at the Manual Page Library.)

At first, there was no connotation that files in /etc were configuration files. In these very early days, if you wanted to customize something, you’d be recompiling that part of the system. As Unix got more powerful, there were more and more things you could do without recompiling. As Unix got used more widely, there were more and more things people wanted to do, and they found ways of doing them without going through the trouble of recompiling. So /etc filled up with more and more text files that people could and did customize, hence it gradually became the configuration directory.

With the creation of /sbin to contain programs intended only for the system administrator, /etc ended up containing only text files, many of which can be customized by the system administrator. A few files (e.g. /etc/mtab , sometimes /etc/resolv.conf ) are automatically maintained by system programs; there is a slow trend to move these files to /run in the Linux world.

On modern unix systems, almost all system-wide configuration files are under /etc , but not all files in /etc are configuration files. Typical Linux distributions and other unix variants don’t cope very well with modifying many of the files that come from packages; at a minimum, you may end up having to merge local modifications manually when the system is upgraded.

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What is etc directory Unix?

The /etc (et-see) directory is where a Linux system’s configuration files live. $ ls /etc. A large number of files (over 200) appear on your screen. You’ve successfully listed the contents of the /etc directory, but you can actually list files in several different ways.

What is the purpose of the etc directory?

The /etc directory is contained in the root directory. It stores storage system configuration files, executables required to boot the system, and some log files.

What is the purpose of ETC directory in Linux?

/etc — Configuration Files The /etc directory contains configuration files, which can generally be edited by hand in a text editor. Note that the /etc/ directory contains system-wide configuration files — user-specific configuration files are located in each user’s home directory.

What filesystem does Windows 10 use?

NTFS
List of default file systems

Release year	Operating system	File system
2015	Windows 10	NTFS
2015	Fedora 22	Combination: ext4 (Fedora Workstation and Cloud), XFS (Fedora Server)
2015	OpenSUSE 42.1	Combination: Btrfs (for system) and XFS (for home).
2016	iOS 10.3	APFS

Why is etc called etc?

ETC is a folder which contain all your system configuration files in it. Then why the etc name? “etc” is an English word which means etcetera i.e in layman words it is “and so on”. The naming convention of this folder is having some interesting history.

Why do we need vi editor?

The default editor that comes with the UNIX operating system is called vi (visual editor). Using vi editor, we can edit an existing file or create a new file from scratch. we can also use this editor to just read a text file. Command Mode: When vi starts up, it is in Command Mode.

Why is ETC called etc?

How files system are organized with Unix explain with an example?

All data in Unix is organized into files. These directories are organized into a tree-like structure called the file system. Files in Unix System are organized into multi-level hierarchy structure known as a directory tree. At the very top of the file system is a directory called “root” which is represented by a “/”.

Where is the etc folder in Windows?

1. Press the Windows key.
2. Type Notepad in the search field.
3. In the search results, right-click Notepad and select Run as administrator.
4. From Notepad, open the following file: c:\Windows\System32\Drivers\etc\hosts.
5. Make the necessary changes to the file.
6. Click File > Save to save your changes.

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