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Can I export a variable to the environment from a bash script without sourcing it?
... variable:
. ./export.bash
or
source ./export.bash
Now when echoing from main shell it works
echo $VAR
HELLO, VARABLE
We will now reset VAR
export VAR=""
echo $VAR
Now we will execute a script to source the variable then unset it :
./test-export.sh
HELLO, VARABLE
--
.
the code: cat...
Install dependencies globally and locally using package.json
...e devDependencies section of your package.json. Anytime you use something from scripts in package.json your devDependencies commands (in node_modules/.bin) act as if they are in your path.
For example:
npm i --save-dev mocha # Install test runner locally
npm i --save-dev babel # Install current bab...
Sending an HTTP POST request on iOS
...he push never reaches the server although I do get a code 200 as response (from the urlconnection). I never get a response from the server nor does the server detect my posts (the server does detect posts coming from android)
...
Why should I use Google's CDN for jQuery?
...elism available. (Most browsers will only download 3 or 4 files at a time from any given site.)
It increases the chance that there will be a cache-hit. (As more sites follow this practice, more users already have the file ready.)
It ensures that the payload will be as small as possible. (Google c...
How do you Force Garbage Collection from the Shell?
...rm program.
Fire it up like so:
java -jar jmxterm-1.0-alpha-4-uber.jar
From there, you can connect to a host and trigger GC:
$>open host:jmxport
#Connection to host:jmxport is opened
$>bean java.lang:type=Memory
#bean is set to java.lang:type=Memory
$>run gc
#calling operation gc of mb...
Configuring so that pip install can work from github
...─ __init__.py
│ └── bar.py
└── setup.py
And install from github like:
$ pip install git+ssh://git@github.com/myuser/foo.git
or
$ pip install git+https://github.com/myuser/foo.git@v123
or
$ pip install git+https://github.com/myuser/foo.git@newbranch
More info at https://pip.pypa...
How to deny access to a file in .htaccess
.../directives in the htaccess of subdirectories get applied superceding ones from the parent).
So you can have:
<Files "log.txt">
Order Allow,Deny
Deny from all
</Files>
For Apache 2.4+, you'd use:
<Files "log.txt">
Require all denied
</Files>
In an htaccess fi...
How do I prevent the padding property from changing width or height in CSS?
... in your newdiv with width: auto and margin-left: 20px
Remove the padding from newdiv.
The W3 Box model page has good info.
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How to get URI from an asset File?
...asset/... (note: three slashes) where the ellipsis is the path of the file from within the assets/ folder.
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What is a Windows Handle?
...in computing) a handle is an abstraction which hides a real memory address from the API user, allowing the system to reorganize physical memory transparently to the program. Resolving a handle into a pointer locks the memory, and releasing the handle invalidates the pointer. In this case think of ...