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How to Batch Rename Files in a macOS Terminal?
...e is an escape character to refer to the actual '.' character zero or more times (as opposed to ANY character in regex)
-n2: indicates that there are 2 outputs that need to be passed on to mv as parameters. for each input from ls, this sed command will generate 2 output, which will then supplied to...
How do I create directory if none exists using File class in Ruby?
...reenshots:
In our env setup (env.rb)
screenshotfolder = "./screenshots/#{Time.new.strftime("%Y%m%d%H%M%S")}"
unless File.directory?(screenshotfolder)
FileUtils.mkdir_p(screenshotfolder)
end
Before do
@screenshotfolder = screenshotfolder
...
end
And in our hooks.rb
screenshotName = "#{@s...
How to print a string in fixed width?
... and first ss ' so you can reorder or even output the same variable many times in a single output string.
– mightypile
Dec 23 '13 at 17:59
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How do I create a unique ID in Java? [duplicate]
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Why can't we use System.currentTimeMillis to generate a monotonically increasing sequence and add some random positive integer salt?
– Farhad
Aug 2 '16 at 10:06
...
How do you use String.substringWithRange? (or, how do Ranges work in Swift?)
...ngs are not simple beasts, and getting to a particular index may take O(n) time, which means a loop that uses a subscript can be O(n^2). You have been warned.
You just need to add a new subscript function that takes a range and uses advancedBy() to walk to where you want:
import Foundation
extens...
How do I calculate tables size in Oracle
... option as sp_spaceused. Still the potential answers I got are most of the time outdated or don't work. Probably because I'm no DBA on the schema I'm working with.
...
Interactive search/replace regex in Vim?
...
This answer is particularly useful, as I imagine a lot of times you decide to replace instances of a word, it's the word you just searched for.
– M_M
Feb 11 at 10:33
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Count how many records are in a CSV Python?
...(filename) as f:
sum(1 for line in f)
Here is the code tested.
import timeit
import csv
import pandas as pd
filename = './sample_submission.csv'
def talktime(filename, funcname, func):
print(f"# {funcname}")
t = timeit.timeit(f'{funcname}("{filename}")', setup=f'from __main__ import {...
Difference between jQuery `click`, `bind`, `live`, `delegate`, `trigger` and `on` functions (with an
...;
});
This works almost the same as .live(), but the event bubbles fewer times before being captured and the handlers executed. Another common use of both of these is say your class changes on an element, no longer matching the selector you originally used...with these methods the selector is eva...
How to count string occurrence in string?
How can I count the number of times a particular string occurs in another string. For example, this is what I am trying to do in Javascript:
...