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How can I know if a process is running?
When I get a reference to a System.Diagnostics.Process , how can I know if a process is currently running?
13 Answers
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setting an environment variable in virtualenv
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Very funny gif :D
– chachan
Nov 4 '14 at 22:47
3
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SQL JOIN - WHERE clause vs. ON clause
...oins .
The answer may be related (or even the same) but the question is different.
18 Answers
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Command line CSV viewer? [closed]
... 5
1 5
Note that the substitution of ,, for , , is done twice. If you do it only once, 1,,,4 will become 1, ,,4 since the second comma is matched already.
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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...
Easiest way to flip a boolean value?
I just want to flip a boolean based on what it already is. If it's true - make it false. If it's false - make it true.
13 A...
regex for matching something if it is not preceded by something else
So with regex in java, I want to write a regex that will match if and only if the pattern is not preceded by certain characters. For example:
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how do I query sql for a latest record date for each user
... Careful with this approach: it can return more than one row per user if they have more than one record per date (max(date) would return a date that would join multiple records). To avoid this issue, it would be preferable to use @dotjoe's solution: stackoverflow.com/a/2411763/4406793.
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How to load images dynamically (or lazily) when users scrolls them into view
...of images.
Plugin
Demo
EDIT: How do these plugins work?
This is a simplified explanation:
Find window size and find the position of all images and their sizes
If the image is not within the window size, replace it with a placeholder of same size
When user scrolls down, and position of image &l...
Maven error: Could not find or load main class org.codehaus.plexus.classworlds.launcher.Launcher
...ing OSX 10.9 with JDK 1.7. Hope this helps.
Note: Please delete M2_HOME, if already set. Eg: unset M2_HOME
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