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How to check if running as root in a bash script
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430
The $EUID environment variable holds the current user's UID. Root's UID is 0. Use something like...
AngularJS - wait for multiple resource queries to complete
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203
You'll want to use promises and $q.all().
Basically, you can use it to wrap all of your $resou...
Using IQueryable with Linq
...etProducts();
var productsOver25 = products.Where(p => p.Cost >= 25.00);
What happens here, is the database loads all of the products, and passes them across the wire to your program. Your program then filters the data. In essence, the database does a SELECT * FROM Products, and returns E...
Finding child element of parent pure javascript
...ernatives to querySelector, like document.getElementsByClassName('parent')[0] if you so desire.
Edit: Now that I think about it, you could just use querySelectorAll to get decendents of parent having a class name of child1:
children = document.querySelectorAll('.parent .child1');
The differenc...
How to add a vertical Separator?
...er!
– Tatranskymedved
May 9 '17 at 10:34
Works perfectly well in both horizontal and vertical Menu between MenuItems a...
Swift - Cast Int into enum:Int
...tch a bug in this case.
– X.Y.
Dec 30 '18 at 22:48
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Regex exactly n OR m times
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answered Dec 14 '12 at 8:10
Mark ByersMark Byers
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Which terminal command to get just IP address and nothing else?
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You can write a script that only return the IP like:
/sbin/ifconfig eth0 | grep 'inet addr' | cut -d: -f2 | awk '{print $1}'
For MAC:
ifconfig | grep "inet " | grep -v 127.0.0.1 | cut -d\ -f2
Or for linux system
hostname -i | awk '{print $3}' # Ubuntu
hostname -i # Debian
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Why do I need 'b' to encode a string with Base64?
...s 8-bit binary byte data and encodes it uses only the characters A-Z, a-z, 0-9, +, /* so it can be transmitted over channels that do not preserve all 8-bits of data, such as email.
Hence, it wants a string of 8-bit bytes. You create those in Python 3 with the b'' syntax.
If you remove the b, it be...
Use JAXB to create Object from XML String
...form.Source ?
– bvdb
Jul 13 '16 at 10:29
2
In my case work as: JAXBElement<MyObject> elemen...