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Bash: If/Else statement in one line
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Is it necessary to re-direct the output of the ps command to a file ? Would this not work ? if ps aux | grep some_proces[s]; then echo 1; else echo 0; fi. Locally it seems to work for me. Is it because OP had the redirection in the command he tried?
– user...
How do I make a transparent canvas in html5?
...Canvases are transparent by default.
Try setting a page background image, and then put a canvas over it. If nothing is drawn on the canvas, you can fully see the page background.
Think of a canvas as like painting on a glass plate.
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C# short/long/int literal format?
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Just to add that upper case and lower case of these literal suffixes are equivalent e.g. 1l and 1L both will be treated as long integer but certainly 1L is more readable than 1l.
– RBT
Mar 21 '17 at 3:14
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getenv() vs. $_ENV in PHP
What is the difference between getenv() and $_ENV ?
6 Answers
6
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When should I use File.separator and when File.pathSeparator?
In the File class there are two strings, separator and pathSeparator .
3 Answers
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View's SELECT contains a subquery in the FROM clause
I have two tables and I need to create a view. The tables are:
4 Answers
4
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How can I convert string date to NSDate?
...t dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = /* find out and place date format from
* http://userguide.icu-project.org/formatparse/datetime
*/
let date = dateFormatter.dateFromString(/* your_date_string */)
For further quer...
How can I make git do the “did you mean” suggestion?
... help.autocorrect 5 will make it wait half a second before running the command so you can see the message first.
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count members with jsonpath?
...4 items:
accepted value: [1,2,3,4]
mockMvc.perform(get(API_URL))
.andExpect(jsonPath("$", hasSize(4)));
to test that API returns an object containing 2 members:
accepted value: {"foo": "oof", "bar": "rab"}
mockMvc.perform(get(API_URL))
.andExpect(jsonPath("$.*", hasSize(2)));
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How to generate a random alpha-numeric string?
I've been looking for a simple Java algorithm to generate a pseudo-random alpha-numeric string. In my situation it would be used as a unique session/key identifier that would "likely" be unique over 500K+ generation (my needs don't really require anything much more sophisticated).
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