what does 2 1 2 mean A ratio is comparison between two or more different amounts of the same unit The ratio does not tell us how many there are together but only how their numbers compare For example if the number of boys to girls at a hockey game is 2 1 we know following information There are more number of boys than the girls
At first 2 1 may look like a good way to redirect stderr to stdout However it will actually be interpreted as redirect stderr to a file named 1 indicates that what follows and precedes is a file descriptor and not a filename Thus we use 2 1 Consider to be a redirect merger operator Simon Moore May 11 2017 The number is split into two parts such that one is twice as large as the other Explanation For example if you split 12 as a 2 1 ratio you get 8 and 4 one part twice is large as the other In general terms you can work out the values like this Ratio a b N umber x x a b a x a b b Answer link
what does 2 1 2 mean
what does 2 1 2 mean
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What Does 2 1 2 Equal YouTube
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2 1 is a Shell operator that is used in the command line to redirect stderr file descriptor 2 to stdout file descriptor 1 In other words it allows any error messages generated by a command to be combined with its standard output and sent to the same destination such as the terminal or a file 2 1 merges stderr with stdout which can be useful if for example you want to pipe stderr text So for example if you want to see if a program prints a certain stderr message but don t want your screen filled with presumably unimportant garbage you could do something like program 2 1 grep crashed which will search the stdout
Solution Explanation about 2 1 ratio Ratios are used to compare two or more quantities and determine the relationship among two or more quantities The two or more numbers in a ratio are compared if they have the same units The ratio between two quantities a and b is represented as a b 2 1 means redirect the stderr 2 to where stdout is being redirected to 1 Before we start I want to go over a basic concept of file descriptors There are 3 file descriptors in UNIX and each is associated with a number We won t cover stdin in this article but we will talk about stdout and stderr Let s go stdout
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2 refers to the second file descriptor of the process i e stderr means redirection 1 means the target of the redirection should be the same location as the first file descriptor i e stdout So dev null 2 1 first redirects stdout 2 1 is shell notation for redirecting stream 2 stderr to stream 2 stdout so that all of your normal output and your error output go to the same stream This is useful if you want to direct them both to the same file for example
If you ve been asked to provide a 2 1 equivalent degree this is the standard UK grading system for degrees UK degrees are classified out of 100 and are 1st 70 or above 2 1 60 to 69 2 2 50 to 59 3rd 40 to 49 Find out more Ask Question Asked 2 years 6 months ago Modified 2 years 5 months ago Viewed 387 times 2 If 2 1 redirects the stderr to the stdout isn t that what just does So does 2 1 and have the same meaning or are they different in some way
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what does 2 1 2 mean - 2 1 merges stderr with stdout which can be useful if for example you want to pipe stderr text So for example if you want to see if a program prints a certain stderr message but don t want your screen filled with presumably unimportant garbage you could do something like program 2 1 grep crashed which will search the stdout