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  • linux - What goes in var? - Stack Overflow
    123 That description of var is self-contradictory var contains things that are prone to change, such as websites, temporary files ( var tmp) and databases The name is an abbreviation of "variable"
  • What is the difference between $ {var}, $var, and $ {var} in the . . .
    What the title says: what does it mean to encapsulate a variable in {}, "", or "{}"? I haven't been able to find any explanations online about this - I haven't been able to refer to them except for
  • What is indirect expansion? What does $ {!var*} mean?
    I'm reading " Bash Guide for Beginners " It says: If the first character of PARAMETER is an exclamation point, Bash uses the value of the variable formed from the rest of PARAMETER as the name of the variable; this variable is then expanded and that value is used in the rest of the substitution, rather than the value of PARAMETER itself This is known as indirect expansion The example given is:
  • ERROR 2002 (HY000): Cant connect to local MySQL server through socket . . .
    This happened to me I'd accidently done chown 750 var mysql instead of chmod 750 var mysql, and suddenly the user 750 owned the folder instead of the user mysql The server immediately crashed because it no longer had write access to the mysql folder
  • Access files in var mobile Containers Data Application without . . .
    A program logs some message in directory var mobile Containers Data Application on iPhone Is there any way I can get access to this directory without jailbreaking iPhone?
  • c# - How to initialize var? - Stack Overflow
    C# is a strictly strongly typed language var was introduced for compile-time type-binding for anonymous types yet you can use var for primitive and custom types that are already known at design time At runtime there's nothing like var, it is replaced by an actual type that is either a reference type or value type When you say,
  • docker：Cannot connect to the Docker daemon at unix: var run docker . . .
    sudo ls -l var run docker sock Go to docker -> preferences -> check administrative access Behavior -> check automatically start at login General -> check administrative access allow at last apply restart
  • What does var mean in C#? - Stack Overflow
    var is a "contextual keyword" in C# meaning you can only use it as a local variable implicitly in the context of the same class that you are using the variable





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