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live output from subprocess command
... file descriptor (in POSIX at least). (Side note: PIPE and STDOUT are actually ints internally, but are "impossible" descriptors, -1 and -2.)
A stream—really, any object with a fileno method. Popen will find the descriptor for that stream, using stream.fileno(), and then proceed as for an int va...
Run a string as a command within a Bash script
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eval is an evil command in all programming languages so use it with caution.
– Krishnadas PC
Jul 17 '18 at 6:50
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MySQL query to get column names?
I'd like to get all of a mysql table's col names into an array in php?
21 Answers
21
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How can I know when an EditText loses focus?
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Kotlin way
editText.setOnFocusChangeListener { _, hasFocus ->
if (!hasFocus) { }
}
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Python glob multiple filetypes
...out:
import glob
types = ('*.pdf', '*.cpp') # the tuple of file types
files_grabbed = []
for files in types:
files_grabbed.extend(glob.glob(files))
# files_grabbed is the list of pdf and cpp files
Perhaps there is another way, so wait in case someone else comes up with a better answer.
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How to set breakpoints on future shared libraries with a command flag
...debug Caja in one line:
gdb -ex "set breakpoint pending on" -ex "break gdk_x_error" -ex run --args caja --sync
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clear javascript console in Google Chrome
...nto the console it clears it.
I don't think there is a way to programmatically do it, as it could be misused. (console is cleared by some web page, end user can't access error information)
one possible workaround:
in the console type window.clear = clear, then you'll be able to use clear in any s...
append to url and refresh page
... a URL in different browsers?
This is my suggested approach:
function URL_add_parameter(url, param, value){
var hash = {};
var parser = document.createElement('a');
parser.href = url;
var parameters = parser.search.split(/\?|&/);
for(var i=0; i < paramete...
How to search file text for a pattern and replace it with a given value
...ull. This code is not fit for anything beyond a quick one-off script where all the data is backed up. For that reason, do NOT copy this code into your programs.
Here's a quick short way to do it.
file_names = ['foo.txt', 'bar.txt']
file_names.each do |file_name|
text = File.read(file_name)
ne...
Solving a “communications link failure” with JDBC and MySQL [duplicate]
...hat have been mentioned in different web sites, but non of them worked. Finally I changed my code and found out what was the problem. I'll try to tell you about different approaches and sum them up here.
While I was seeking the internet to find the solution for this error, I figured out that there ...