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How to escape a single quote inside awk
...will run into a lot of of escaping, like awk "{ print \"abc\", \$1 }". Any time a double quote appears in the awk program, it has to be escaped so that it doesn't close the shell quote. And compare this: awk '{print "\\"}' (print a backslash) versus what it takes with double quotes: awk "BEGIN {pri...
Why doesn't nodelist have forEach?
...t(x) path, which did something weird since x wasn't a real array.
For some time there was a proposal for an Elements class that was a real subclass of Array, and would be used as "the new NodeList". However, that was removed from the DOM Standard, at least for now, since it wasn't feasible to implem...
Launching Google Maps Directions via an intent on Android
...ent);
NOTE (by @TheNail): Not working in Maps v.7 (latest version at the time of writing). Will ignore the coordinates and search for an object with the given name between the parentheses. See also Intent for Google Maps 7.0.0 with location
...
How do I select elements of an array given condition?
...array(['o', 'o', 'a'],
dtype='|S1')
by the numbers:
>>> %timeit (a < b) & (b < c)
The slowest run took 32.97 times longer than the fastest. This could mean that an intermediate result is being cached.
100000 loops, best of 3: 1.15 µs per loop
>>> %timeit np.log...
What is __pycache__?
...
Wouldn't this be undone every time you run the code?
– Holloway
Feb 6 '15 at 12:39
2
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What is 'Context' on Android?
... suitable timings, right?
There are many other things you like during the time of stay. How do you get these things?
You ask the room-service person to bring these things for you.
Here the room-service person is the context considering you are the
single activity and the hotel to be your app, fin...
How to convert Milliseconds to “X mins, x seconds” in Java?
I want to record the time using System.currentTimeMillis() when a user begins something in my program. When he finishes, I will subtract the current System.currentTimeMillis() from the start variable, and I want to show them the time elapsed using a human readable format such as "XX hours, XX ...
Check if a String contains numbers Java
...think is just to escape the second backslash) and \d+ means a digit from 1 time to infinite.
– Giudark
Sep 29 '16 at 0:11
6
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How to run crontab job every week on Sunday
...ther of these:
5 8 * * 0
5 8 * * 7
5 8 * * Sun
Where 5 8 stands for the time of the day when this will happen: 8:05.
In general, if you want to execute something on Sunday, just make sure the 5th column contains either of 0, 7 or Sun. You had 6, so it was running on Saturday.
The format for cro...
How to search a specific value in all tables (PostgreSQL)?
...
Each qualifying row is returned once only, even when it matches multiple times (as opposed to other answers here).
This searches the whole DB except for system catalogs. Will typically take a long time to finish. You might want to restrict to certain schemas / tables (or even columns) like demons...