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Catching error codes in a shell pipe
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If you really don't want the second command to proceed until the first is known to be successful, then you probably need to use temporary files. The simple version of that is:
tmp=${TMPDIR:-/tmp}/mine.$$
if ./a > $tmp.1
then
if ./b <$tmp.1 >$tmp....
Why there is no ForEach extension method on IEnumerable?
...d the method:
Type checking: foreach is done at runtime, ForEach() is at compile time (Big Plus!)
The syntax to call a delegate is indeed much simpler: objects.ForEach(DoSomething);
ForEach() could be chained: although evilness/usefulness of such a feature is open to discussion.
Those are all gr...
Performing a Stress Test on Web Application?
...I'd written a simple home page, login script, and site walkthrough (in an ecommerce site adding a few items to a cart and checkout).
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Mysql - How to quit/exit from stored procedure
...n in most official MySQL examples) is not needed. (this is a great way to comment out a stored proc without having to scroll to the bottom to put */ in place)
– user645280
May 22 '13 at 14:36
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What is the difference between Ruby 1.8 and Ruby 1.9
...s p[1,2,3]
Ruby 1.8.6
p = lambda {|a,b,c| a+b+c}
puts p.call(1,2,3)
Complex Numbers
Ruby 1.9
Complex(3,4) == 3 + 4.im
Decimal Is Still Not The Default
Ruby 1.9
irb(main):001:0> 1.2-1.1
=> 0.0999999999999999
Regex “Properties”
Ruby 1.9
/\p{Space}/
Ruby 1.8.6
/[:space...
What is a clearfix?
...d's default browser 4.4.
For a detailed browser list see: https://caniuse.com/flexbox.
(Perhaps once its position is established completely, it may be the absolutely recommended way of laying out elements.)
A clearfix is a way for an element to automatically clear its child elements, so that yo...
Calculate text width with JavaScript
...uto;
width: auto;
white-space: nowrap; /* Thanks to Herb Caudill comment */
}
<div id="Test">
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
</div>
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When tracing out variables in the console, How to create a new line?
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Reading output of a command into an array in Bash
I need to read the output of a command in my script into an array. The command is, for example:
3 Answers
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Should I use AppDomain.CurrentDomain.BaseDirectory or System.Environment.CurrentDirectory?
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