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Show filename and line number in grep output
...ly and used this example command: grep -Hnor "localhost" . This listet up all matches with file name and line number, short and concise.
– Tore Aurstad
Sep 10 '18 at 8:25
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How to optimize imports automatically after each save in IntelliJ IDEA
I want to learn how can I automatically optimize imports after each save as we do Eclipse( save actions ).
4 Answers
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What is `git diff --patience` for?
...nly considers the longest common subsequence of the signature lines:
Find all lines which occur exactly once on both sides, then do longest common subsequence on those lines, matching them up.
When should you use patience diff? According to Bram, patience diff is good for this situation:
The re...
Sorting data based on second column of a file
...ered Jun 22 '11 at 11:18
Matt RyallMatt Ryall
8,02355 gold badges2121 silver badges1818 bronze badges
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Getting the first and last day of a month, using a given DateTime object
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@KarlGjertsen, you want to see picky... I personally do < firstDayOfNextMonth instead of <= lastDayOfMonth. That way it'll always work regardless of the granularity. (I'm sure ticks will be fine, but who know what the future brings... nanoticks?)
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Toggle input disabled attribute using jQuery
...lity disabled should set by the value disabled or get removed!
Here is a small plugin that I've just made:
(function($) {
$.fn.toggleDisabled = function() {
return this.each(function() {
var $this = $(this);
if ($this.attr('disabled')) $this.removeAttr('disable...
How to get the number of Characters in a String?
..."), utf8.RuneCountInString("世界"))
}
Phrozen adds in the comments:
Actually you can do len() over runes by just type casting.
len([]rune("世界")) will print 2. At leats in Go 1.3.
And with CL 108985 (May 2018, for Go 1.11), len([]rune(string)) is now optimized. (Fixes issue 24923)
The compile...
how to customize `show processlist` in mysql?
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You don't need to call grep four times in a row; just use sed like so: sed '/^\+\-\-/d; /^| Id/d; /^[0-9][0-9]* rows in set '/d; /^ /d; This makes one call to one program (not four), and it's quicker, cleaner, simpler, and it runs faster too.
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Install specific git commit with pip
...jango app and I'm using pip to manage my requirements. How can I do to install a specific git's commit?
4 Answers
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Extract a substring from a string in Ruby using a regular expression
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This is the fastest of all the methods presented, but even the slowest method takes only 4.5 microseconds on my machine. I do not care to speculate why this method is faster. In performance, speculation is useless. Only measurement counts.
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