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Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
I've seen Bash scripts test for a non-zero length string in two different ways. Most scripts use the -n option:
6 Answers...
Why does only the first line of this Windows batch file execute but all three lines execute in a com
I have a batch file that executes three Maven commands, one after the other. Each command can be successfully executed in the script - by itself!. But when I add all three commands to the same file, only the first one executes before the script exits. Any idea why?
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ViewParam vs @ManagedProperty(value = “#{param.id}”)
What is the difference between defining View Params like this:
2 Answers
2
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Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
Under what circumstances should I use afterTextChanged instead of onTextChanged and vice versa?
3 Answers
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Should developers have administrator permissions on their PC
Should developers have administrator permissions on their PC or is giving them power user access sufficient?
22 Answers
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How to calculate the SVG Path for an arc (of a circle)
... select one of them. I'm guessing you probably want to draw a small arc (meaning large-arc-flag=0), in the direction of decreasing angle (meaning sweep-flag=0). All together, the SVG path is:
M 200 175 A 25 25 0 0 0 182.322 217.678
For the second example (assuming you mean going the same directio...
Filter git diff by type of change
...what change class to exclude, 2013-07-17) taught the "--diff-filter"
mechanism to take lowercase letters as exclusion, but we forgot to
document it.
So the documentation on diff-options now (finally) includes:
These upper-case letters can be downcased to exclude.
E.g. --diff-filter=ad ex...
What characters do I need to escape in XML documents?
...alues consist of
sequences of characters, in which each
character can manifest directly
(representing itself), or can be
represented by a series of characters
called a character reference, of which
there are two types: a numeric
character reference and a character
entity reference. T...
An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode
...ay be a web.config in a parent folder you are inheriting from, consider cleaning up that web.config too;
You grow tired of removing the httpHandlers and httpModules that NuGet packages keep adding to system.web, hey do what you need to.
If those options do not work or are more trouble than it is w...
Search for “does-not-contain” on a DataFrame in pandas
I've done some searching and can't figure out how to filter a dataframe by df["col"].str.contains(word) , however I'm wondering if there is a way to do the reverse: filter a dataframe by that set's compliment. eg: to the effect of !(df["col"].str.contains(word)) .
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