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How to make “if not true condition”?
... the $( ... ) form of cmd-substitution is to be commended, but think about what is coming out of the process. Try echo $(cat /etc/passwd | grep "sysa") to see what I mean. You can take that further by using the -c (count) option to grep and then do if ! [ $(grep -c "sysa" /etc/passwd) -eq 0 ] ; then...
How to link to specific line number on github
...hat means that this link will work forever and not point to lines 18-20 of whatever future version of that file might contain.
Now bask in the glow of your new permanent link. ;-)
update 9/29/2017: As pointed out by @watashiSHUN, github has now made it easier to get the permanent link by providing...
.Net HttpWebRequest.GetResponse() raises exception when http status code 400 (bad request) is return
...ode from the server, it is a completely legal way of the server telling me what was wrong with my request (using a message in the HTTP response content)
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How to get duration, as int milli's and float seconds from ?
...
Is this what you're looking for?
#include <chrono>
#include <iostream>
int main()
{
typedef std::chrono::high_resolution_clock Time;
typedef std::chrono::milliseconds ms;
typedef std::chrono::duration<flo...
Is there a way to get the git root directory in one command?
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This is what hg root does. It prints out the top-level directory of your checked out repository. It doesn't switch you to it (and it couldn't, in fact, do so because of how the whole concept of current directory and your shell intera...
How do I read the contents of a Node.js stream into a string variable?
...s marked "correct on this question". If you are thinking of down clicking, what do you want me to do?)
The key is to use the data and end events of a Readable Stream. Listen to these events:
stream.on('data', (chunk) => { ... });
stream.on('end', () => { ... });
When you receive the data even...
Variable number of arguments in C++?
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You probably shouldn't, and you can probably do what you want to do in a safer and simpler way. Technically to use variable number of arguments in C you include stdarg.h. From that you'll get the va_list type as well as three functions that operate on it called va_start...
How to ignore user's time zone and force Date() use specific time zone
...rent places is the same UTC, but the output can be formatted differently.
What we need here is some formatting
var _date = new Date(1270544790922);
// outputs > "Tue Apr 06 2010 02:06:30 GMT-0700 (PDT)", for me
_date.toLocaleString('fi-FI', { timeZone: 'Europe/Helsinki' });
// outputs > "6....
Official way to ask jQuery wait for all images to load before executing something
...ts basically analog to imagesLoaded but it works with srcsets too. Exactly what i was looking for! Great plugin!
– Fabian Schöner
Jul 13 '16 at 11:15
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Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
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If you think re-installing psql is a radical step for what seems like a small bug, you're not alone. This answer: stackoverflow.com/a/41476592/839876 seems to address the real problem that most of these answers work around.
– frandroid
Sep ...