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Variable interpolation in the shell
...ap.sh
or
${filepath}_newstap.sh
or
$filepath\_newstap.sh
_ is a valid character in identifiers. Dot is not, so the shell tried to interpolate $filepath_newstap.
You can use set -u to make the shell exit with an error when you reference an undefined variable.
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Can I add comments to a pip requirements file?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
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Git says “Warning: Permanently added to the list of known hosts”
...is added to the known_hosts file. This fixes the issue, rather than just hiding the log message.
This problem was bugging me for quite some time. The problem occurs because the OpenSSH client compiled for Windows doesn't check the known_hosts file in ~/.ssh/known_hosts
ssh -vvvvvvvvvvvvvvvvvvv g...
Precedence and bitmask operations
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Well, consider a more common example: the ternary operator, PHP has it backwards, making it different than all other languages. Ref: phpsadness
– Alvin Wong
Feb 24 '14 at 10:38
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Draw multi-line text to Canvas
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Unfortunately Android doesn't know what \n is. What you have to do is strip the \n and then offset the Y to get your text on the next line. So something like this:
canvas.drawText("This is", 100, 100, mTextPaint);
canvas.drawText("multi-line",...
Python: One Try Multiple Except
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
VIM Ctrl-V Conflict with Windows Paste
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I like this better than fiddling with _vimrc. It works immediately and since I am unlikely to be on serial terminals in the future, the Ctrl-S/Ctrl-Q flow control is a non-issue.
– Michael Dillon
Jul 23 '10 at 2...
Choose between ExecutorService's submit and ExecutorService's execute
... task for execution and returns a Future representing that
task.
void execute(Runnable command)
Executes the given command at some time in the future. The command may execute in a new thread, in a pooled thread, or in the calling thread, at the discretion of the Executor implementation....
CSS Div stretch 100% page height
I have a navigation bar on the left hand side of my page, and I want it to stretch to 100% of the page height. Not just the height of the viewport, but including the areas hidden until you scroll. I don't want to use javascript to accomplish this.
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RegEx - Match Numbers of Variable Length
...0-9] for most regex flavors:
{\d{1,3}:\d{1,3}}
You may also want to consider escaping the outer { and }, just to make it clear that they are not part of a repetition definition.
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