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Check if bash variable equals 0 [duplicate]
I have a bash variable depth and I would like to test if it equals 0. In case yes, I want to stop executing of script. So far I have:
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RegEx to find two or more consecutive chars
...{2} without the comma should also work, right?
– Alexander Mills
Sep 6 '18 at 21:09
16
Alexander,...
Add leading zeroes/0's to existing Excel values to certain length
There are many, many questions and quality answers on SO regarding how to prevent leading zeroes from getting stripped when importing to or exporting from Excel. However, I already have a spreadsheet that has values in it that were truncated as numbers when, in fact, they should have been handled a...
Changing iframe src with Javascript
...ne clicks a radio button. For some reason my code is not working correctly and I am having trouble figuring out why. Here is what I have:
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What's the false operator in C# good for?
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You can use it to override the && and || operators.
The && and || operators can't be overridden, but if you override |, &, true and false in exactly the right way the compiler will call | and & when you write || and &&.
For example, ...
In HTML I can make a checkmark with ✓ . Is there a corresponding X-mark?
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I just tested and this doesn't work in IE 8... IE 9, FireFox, and Chrome work correctly. Here's a good link to more symbols: danshort.com/HTMLentities/index.php?w=dingb
– Nathan Prather
Aug 26 '12 at ...
How to change colors of a Drawable in Android?
I'm working on an android application, and I have a drawable that I'm loading up from a source image. On this image, I'd like to convert all of the white pixels to a different color, say blue, and then cache the resultant Drawable object so I can use it later.
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Which is more preferable to use: lambda functions or nested functions ('def')?
...efs are just syntactic sugar for an assignment, so the result is the same, and they are a lot more flexible and readable.
lambdas can be used for use once, throw away functions which won't have a name.
However, this use case is very rare. You rarely need to pass around unnamed function objects.
T...
What are the best practices for JavaScript error handling?
I'm looking to start making my JavaScript a bit more error proof, and I'm finding plenty of documentation on using try , catch , finally , and throw , but I'm not finding a ton of advice from experts on when and where to throw errors.
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How to find if a native DLL file is compiled as x64 or x86?
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You can use DUMPBIN too. Use the /headers or /all flag and its the first file header listed.
dumpbin /headers cv210.dll
64-bit
Microsoft (R) COFF/PE Dumper Version 10.00.30319.01
Copyright (C) Microsoft Corporation. All rights reserved.
Dump of file cv210.dll
PE signature...