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Two-way encryption: I need to store passwords that can be retrieved
...a salt). The application specific key can be stored anywhere (in a config file outside of the web-root, in an environmental variable, etc). The user specific one would be stored in a column in the db next to the encrypted password. The user supplied one would not be stored. Then, you'd do someth...
How do I change bash history completion to complete what's already on the line?
... Ubuntu ships with this useful /usr/share/doc/bash/inputrc.arrows:
# This file controls the behaviour of line input editing for
# programs that use the Gnu Readline library.
#
# Arrow keys in keypad mode
#
"\C-[OD" backward-char
"\C-[OC" forward-char
"\C-[OA" previous-history
"...
Force an Android activity to always use landscape mode
...
If you want to change this, you can go back to the AndroidManifest.xml file shown above, and change the line to:
<activity android:screenOrientation="sensor" android:name="VncCanvasActivity">
This should change the program to switch from portrait to landscape when the user rotates the d...
Automatically plot different colored lines
...x" at the bottom of this post.
There is a great tool on the MATLAB Central File Exchange to generate any number of visually distinct colors, if you have the Image Processing Toolbox to use it. Read on for details.
The ColorOrder axes property allows MATLAB to automatically cycle through a list ...
How many bytes does one Unicode character take?
... I wrote a demo that shows Windows-1252, UTF8 and UTF8-BOM encoded files interpreted with each encoding, and compares equality between the results: github.com/vladyrn/encodings_demo
– Vlad
Aug 30 '18 at 11:54
...
What's the “big idea” behind compojure routes?
...T "/test" [& more] (str "<pre>" more "</pre>"))
(GET ["/:filename" :filename #".*"] [filename]
(response/file-response filename {:root "./static"}))
(ANY "*" [] "<h1>Page not found.</h1>"))
Let's analyse each route in turn:
(GET "/" [] (workbench)) -- when de...
Set a persistent environment variable from cmd.exe
... Ok, so considering your solution, I have created a registry (.reg) file containing the environment variables I want to add/change. I'll then run this file on all the target PCs. I don't really need to send a windows message, as I will just restart the application that will be impacted. Thank...
How to get the width and height of an android.widget.ImageView?
...
your xml file :
<ImageView android:id="@+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/image"
android:sc...
Persist javascript variables across pages? [duplicate]
... cyclic reference? Like popup window object? Or, native objects like HTML5 File API File object?
– Prakhar Mishra
Jan 5 '16 at 5:45
...
How do I list the functions defined in my shell?
...o declare
will list the function names only
(and optionally the source file and line number).
Bash Reference Manual
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