jdhao jdhao

OneTab

OneTab allows us to save the currently opened Tabs in Chrome for later inspection. Even if Chrome is restarted, your tab history is not lost.

Vimium

Vimium is the hacker's browser which brings Vim-like key bindings for quicker operations inside Chrome. A must have if you care about your precious time and speed.

In python, random.choices() will select K items from a list with replacement, which means that there are may be duplicated items in the result list. If you want to select K random item from the list without duplication, you need to use random.sample() instead.

I wasted one hour debugging this issue and suddenly found the casue. Sad :[

How do I grep unicode characters using its code point?

For example, if we want to grep a(unicode code point is u+0041), we can use the following trick:

grep "$(printf '\u0041')" my_file.txt

References

When log in to server, I see the following error message；

RSA host key for xxxx has changed and you have requested strict checking. Host key verification failed.

You can remove the offending host key from file ~/.ssh/known_hosts. For example, if line 1 includes the offending hosts info, just remove it:

sed -i.bak -e '1d' ~/.ssh/known_hosts

	func! ToggleCursor(timer)
	if &cursorcolumn
	set nocursorcolumn
	else
	set cursorcolumn
	endif

	if &cursorline
	set nocursorline
	else

	import cv2

	img = cv2.imread('test.jpg')

	# specify the write parameter, can be found in https://docs.opencv.org/master/d4/da8/group__imgcodecs.html#ga292d81be8d76901bff7988d18d2b42ac
	write_param = [cv2.IMWRITE_JPEG_QUALITY, 90, cv2.IMWRITE_JPEG_OPTIMIZE, 1]

	cv2.imwrite("test_new.jpg", img, write_param)

	# Reference

	#eovim
	#eovim/!
	AED
	Builtin
	CER
	DT
	Deoplete
	Deteval
	Esc
	Exif

	" Remove trailing white space, see https://vi.stackexchange.com/a/456/15292
	function utils#StripTrailingWhitespaces() abort
	let l:save = winsaveview()
	" vint: next-line -ProhibitCommandRelyOnUser -ProhibitCommandWithUnintendedSideEffect
	keeppatterns %s/\v\s+$//e
	call winrestview(l:save)
	endfunction

	" Create command alias safely, see https://bit.ly/2ImFOpL.
	" The following two functions are taken from answer below on SO: