Linux sort uniq awk head completes the access log statistics sorting function, uniqawk
We often collect some access logs during development. The URLs in the access logs are massive and many of them are duplicated. Take the url as an example. Count
When we develop, we often count some access logs, the URLs in the access log are huge, and many are duplicates. In the URL, for example, the URL appears in the first 5 frequency of the number of URLs, and the number of occurrences in descending
When we develop, we often count some access logs, and the URLs in the access log are massive, and many of them are duplicate content. Take the URL, for example, to count the URLs with the first 5 frequency occurrences in the URL, sorted by the
Code that can be used directly: the cloud-dwelling Community revised edition
[Ctrl + A All SELECT Note: If the need to introduce external JS need to refresh to perform]
Here is the advanced tutorials and instructions, like
The last written "Uniq method for JavaScript arrays" found that the problem with the code was still there. For example, if there are undefined elements in the array can not be filtered.
Yesterday I saw the Lazy brother renew the function, and now
Basic shell programming [3]-common tools awk \ sed \ sort \ uniq \ od, awkuniqAwk
Awk is a very useful thing. It is widely used in the presentation and processing of linux system analysis results. You can also use pipelines, input | awk ''| output1
I wrote a JavaScript Array uniq method last time and found that the code problem still exists. For example, an undefined element in an array cannot be filtered.Yesterday I saw the Lazy brother update the function again. Now he writes it like
Add a prototype method to the local object of array. Its purpose is to delete repeated entries in array entries (multiple entries may exist). The returned value is a new array containing the deleted repeated entries.
Formal
The uniq method of the JavaScript Array adds a prototype method to the local object of the Array. It is used to delete repeated entries in the Array entries (multiple entries may exist ), the returned value is a new array containing the deleted
The uniq method of the JavaScript Array adds a prototype method to the local object of the Array. it is used to delete repeated entries in the Array entries (multiple entries may exist ), the returned value is a new array containing the deleted
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