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How to ssh to vagrant without actually running “vagrant ssh”?
...$(vagrant ssh-config | grep Port | grep -o '[0-9]\+')
ssh -q \
-o UserKnownHostsFile=/dev/null \
-o StrictHostKeyChecking=no \
-i ~/.vagrant.d/insecure_private_key \
vagrant@localhost \
-p $PORT \
"$@"
As a one-liner (with thanks to kgadek):
ssh $(vagrant ssh-config | awk ...
C++ Structure Initialization
... Really bad idea: add one member to your address and you'll never know of all the places that create an address and now do not initialize your new member.
– mystery_doctor
May 7 '19 at 6:13
...
IF… OR IF… in a windows batch file
...%VAR%;=!" neq "!TEST!" if "!TEST:;%VAR%;=;%VAR%;"=="!TEST!" echo true
But now we have lost the ability of providing an ELSE clause unless we add an indicator variable. The code has begun to look a bit "ugly", but I think it is the best performing reliable method for testing if VAR is any one of an ...
Find kth smallest element in a binary search tree in Optimum way
... subtree, to decide whether to do recurse into the left or right subtree.
Now, suppose we are at node T:
If k == num_elements(left subtree of T), then the answer we're looking for is the value in node T.
If k > num_elements(left subtree of T), then obviously we can ignore the left subtree, bec...
What modern C++ libraries should be in my toolbox? [closed]
...question/answer, being cross-platform and free. I've added it back in for now. Can you explain why you think it is unsuitable for this list?
– JBentley
Jan 22 '14 at 2:26
...
Remove characters except digits from string using Python?
... up by 7-8 times is hardly peanuts, so the translate method is well worth knowing and using. The other popular non-RE approach...:
$ python -mtimeit -s'x="aaa12333bb445bb54b5b52"' '"".join(i for i in x if i.isdigit())'
100000 loops, best of 3: 11.5 usec per loop
is 50% slower than RE, so the .tra...
How do I declare class-level properties in Objective-C?
Maybe this is obvious, but I don't know how to declare class properties in Objective-C.
10 Answers
...
Share variables between files in Node.js?
...'/../config/environments/' + process.env.NODE_ENV + '.json') || {});
And now you can get the data like this:
// File: server.js
...
var config = require('./config/config');
...
mailer.setTransport(nodemailer.createTransport(config.mailerType, config.mailerConfig));
Scenario 2: Use a constants f...
MySQL DROP all tables, ignoring foreign keys
...
Yeah I know, but I wanted to use it in a script. What I ended up actually doing is DROP DATABASE foo; CREATE DATABASE foo;, which isn't quite the same but worked for me.
– Timmmm
Nov 15 '12 at 9...
How do you use the ellipsis slicing syntax in Python?
...t; from numpy import arange
>>> a = arange(16).reshape(2,2,2,2)
Now, you have a 4-dimensional matrix of order 2x2x2x2. To select all first elements in the 4th dimension, you can use the ellipsis notation
>>> a[..., 0].flatten()
array([ 0, 2, 4, 6, 8, 10, 12, 14])
which is ...