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proper way to sudo over ssh
...do --prompt="" -S -- whoami << EOF
> <remote_sudo_password>
root
We're telling sudo not to issue a prompt, and to take its input from stdin. This makes the sudo password passing completely silent so the only response you get back is the output from whoami.
This technique has the b...
How to show “Done” button on iPhone number pad
...wWillDisappear:animated];
}
- (UIView *)findFirstResponderUnder:(UIView *)root {
if (root.isFirstResponder)
return root;
for (UIView *subView in root.subviews) {
UIView *firstResponder = [self findFirstResponderUnder:subView];
if (firstResponder != nil)
...
How to read a .xlsx file using the pandas Library in iPython?
...
Hmmm if you said mysql - I'd know the answer, postgres may just work similarly... not 100% though. (Would be a good question.)
– Andy Hayden
Jun 3 '13 at 21:54
...
How to write to a file, using the logging Python module?
...#Each logger requires a handler, but can have more than one
[loggers]
keys=root,Admin_Client
#Each handler requires a single formatter
[handlers]
keys=fileHandler, consoleHandler
[formatters]
keys=logFormatter, consoleFormatter
[logger_root]
level=DEBUG
handlers=fileHandler
[logger_Admin_Cli...
Find the IP address of the client in an SSH session
...s with non-sudoed users. e.g. if you have an ssh user and then escalate to root, a new shell is created and these variables are lost, unless you can trace back through the tree to find the original ssh pid and get the variables from /proc/$PID/environ
– Andrej
...
How do I install a module globally using npm?
...ur program, using
require('whatever'), then install it
locally, at the root of your
project.
If you’re installing something that you want to use in your shell, on the
command line or something, install
it globally, so that its binaries
end up in your PATH environment
variable.
...
log4j: Log output of a specific class to a specific appender
...
An example:
log4j.rootLogger=ERROR, logfile
log4j.appender.logfile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.logfile.datePattern='-'dd'.log'
log4j.appender.logfile.File=log/radius-prod.log
log4j.appender.logfile.layout=org.apac...
No Swipe Back when hiding Navigation Bar in UINavigationController
...
In my case, to prevent strange effects
Root view controller
override func viewDidLoad() {
super.viewDidLoad()
// Enable swipe back when no navigation bar
navigationController?.interactivePopGestureRecognizer?.delegate = self
}
func gestureRecogni...
How to stretch div height to fill parent div - CSS
...
Suppose you have
<body>
<div id="root" />
</body>
With normal CSS, you can do the following. See a working app https://github.com/onmyway133/Lyrics/blob/master/index.html
#root {
position: absolute;
top: 0;
left: 0;
height: 100%;
width:...
Are there any smart cases of runtime code modification?
......
Some OSs' security models mean self-modifying code can't run without root/admin privileges, making it impractical for general-purpose use.
From Wikipedia:
Application software running under an operating system with strict W^X security cannot execute instructions in pages it is allowed to ...