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USR    
User. The "/usr" directory hierarchy on {Unix} systems. Once
upon a time, in the early days of Unix, this area actually
held users' home directories and files. Since these tend to
expand much faster than system files, /usr would be mounted on
the biggest disk on the system. The root directory, "/" in
contrast, contains only what is needed to {boot} the {kernel},
after which /usr and other disks could be mounted as part of
the multi-user start-up process.

/usr has been used as the "everything else" area, with many
"system" files such as compiler libraries (/usr/include,
/usr/lib), utilty programs (/usr/bin, /usr/ucb), games
(/usr/games), local additions (/usr/local), manuals
(/usr/man), temporary files and queues for various {daemons}
(/usr/spool). These optional extras have grown in size as
Unix has evolved and disks have dropped in price. Under later
versions of {SunOS}, the user files have fled /usr altogether
for a new "/home" {partition} and temporary files have moved
to "/var". This allows /usr to be mounted read-only with some
gain in security and performance since access times are not
updated for files on read-only file systems.


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英文字典中文字典相关资料:


  • Understanding the Linux ` usr` Folder - linuxvox. com
    In the Linux file system hierarchy, the ` usr` directory plays a crucial role It stands for Unix System Resources in traditional Unix systems, although in modern Linux, the meaning is more abstract
  • USR - Wikipedia
    USR (BASIC) ("User Serviceable Routine"), a common BASIC instruction to execute native machine code Upward Sun River site, archaeological site in Alaska Uxbridge and South Ruislip, a parliamentary constituency in the United Kingdom Unión Santafesina de Rugby, body that rules the game of rugby union in Santa Fe, Argentina
  • USR File: How to open USR file (and what it is)
    Files that contain the usr file extension are most commonly associated with user database files The USR files can store a variety of user database information
  • Connectivity hardware for applications | USR
    Connectivity specialists Connectivity hardware for applications including Point of Sale, remote management and monitoring, out-of-band backup connections and cellular replacements for legacy dial-up remote monitoring and IoT application hardware Why USR?
  • usr - Linux Documentation Project
    In the original Unix implementations, usr was where the home directories of the users were placed (that is to say, usr someone was then the directory now known as home someone)
  • USR Brands Commercial Restaurant Equipment Manufacturer
    USR Brands is an American owned and operated company committed to supplying foodservice industry resellers and end-users with the highest quality commercial restaurant equipment at reasonable, responsible, and hyper-competitive, prices
  • What do the abbreviations etc and usr mean? - Ask Ubuntu
    It's the directory which stores all of your configuration files usr, as you guessed, is the directory where "user" files reside; it contains all of the items that are not part of the system itself such as user programs and data
  • Visit Us - Universal Service Recycling
    Five convenient locations in Stockton, Modesto, Sacramento, Merced, and Carson City Find a USR facility near you
  • Chapter 4. The usr Hierarchy - Linux Foundation
    usr is the second major section of the filesystem usr is shareable, read-only data That means that usr should be shareable between various FHS-compliant hosts and must not be written to
  • Kidney Care and Dialysis Provider | U. S. Renal Care
    U S Renal Care is the highest-quality dialysis provider available for people living with chronic and acute renal disease





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