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What is the $? (dollar question mark) variable in shell scripting? [duplicate]
...able hold? I can't Google search the answer because they block punctuation characters.
9 Answers
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How to set java_home on Windows 7?
... @Aboozar Rajabi, You need " " if ... path contain a space char.
– Stéphane GRILLON
Aug 22 '16 at 8:18
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Centering a div block without the width
...S rule. This is a good trick to center a div in a container without adding extra HTML nor applying constraining styles to the container (like text-align: center; which would center all other inline content in the container), while keeping dynamic width for the contained div:
HTML:
<div class="c...
using data-* attribute with thymeleaf
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If you need to include a variable as part of a string you need to do this: th:attr="data-id='some-text'+${element.getId()}+'some-other-text',data-name=${element.getName()}"
– kabadisha
May 31 '16 at 9:46
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count (non-blank) lines-of-code in bash
...^\s*$', which is the beginning of a line, followed by 0 or more whitespace characters, followed by the end of a line (ie. no content other then whitespace), and display a count of matching lines (-c) instead of the matching lines themselves.
An advantage of this method over methods that involve pip...
Best way to track onchange as-you-type in input type=“text”?
...n. If a user holds down a key, the event will only fire once for the first character. onkeypress fires whenever a char is added to the text field.
– fent
Mar 12 '12 at 17:22
62
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Securely storing environment variables in GAE with app.yaml
...m google.appengine.ext import ndb
class Settings(ndb.Model):
name = ndb.StringProperty()
value = ndb.StringProperty()
@staticmethod
def get(name):
NOT_SET_VALUE = "NOT SET"
retval = Settings.query(Settings.name == name).get()
if not retval:
retval = Settings()
retva...
Set cookie and get cookie with JavaScript [duplicate]
...Time() + (days*24*60*60*1000));
expires = "; expires=" + date.toUTCString();
}
document.cookie = name + "=" + (value || "") + expires + "; path=/";
}
function getCookie(name) {
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++...
Can I run multiple versions of Google Chrome on the same machine? (Mac or Windows)
...fo.plist and change the value of <key>KSUpdateURL</key> to <string>https://tools.google.com/abcdefg</string>. No other method worked for me (including setting defaults write com.google.Keystone.Agent checkInterval 0).
– Abhishek Divekar
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How do I convert struct System.Byte byte[] to a System.IO.Stream object in C#?
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There's extra space allocated in the MemoryStream buffer by default (just like with e.g. a list). This can be dealt with easily by using the overload that allows you to set capacity, but is only really useful if you don't expect to w...