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How do I find the number of arguments passed to a Bash script?
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To clarify: unlike argc in C-like languages, $# will be 0 if there are no arguments passed to the script, 1 if there is one argument, etc.
– Vladimir Panteleev
Dec 8 '14 at 11:55
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Apache redirect to another port
...a new server just to test out again. Thanks again, I'll be sure to update if/when I try this again.
– agentcurry
Aug 15 '13 at 18:08
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Rails 4 - Strong Parameters - Nested Objects
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As odd as it sound when you want to permit nested attributes you do specify the attributes of nested object within an array. In your case it would be
Update as suggested by @RafaelOliveira
params.require(:measurement)
.permit(:name, :groundtruth => [:type, :coordinates => []])
On ...
Erlang's 99.9999999% (nine nines) reliability
...s that the service provided by the AXD301 system was ever offline. Subtle difference. As Joe Armstrong says here:
The AXD301 has achieved a NINE nines reliability (yes, you read that right, 99.9999999%). Let’s put this in context: 5 nines is reckoned to be good (5.2 minutes of downtime/year). 7 n...
How do I POST JSON data with cURL?
...is short for --header, -d for --data)
Note that -request POST is optional if you use -d, as the -d flag implies a POST request.
On Windows, things are slightly different. See the comment thread.
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Oracle SELECT TOP 10 records
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If you are using Oracle 12c, use:
FETCH NEXT N ROWS ONLY
SELECT DISTINCT
APP_ID,
NAME,
STORAGE_GB,
HISTORY_CREATED,
TO_CHAR(HISTORY_DATE, 'DD.MM.YYYY') AS HISTORY_DATE
FROM HISTORY WHERE
STORAGE...
Html.DropdownListFor selected value not being set
...when naming the property holding the list of items.
Some code I would use if I were you to avoid this issues and write better MVC code:
Viewmodel:
public class MyViewModel{
public int SelectedOrderId {get; set;}
public SelectList OrderTemplates {get; set;}
// Other properties you need i...
Tar archiving that takes input from a list of files
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What if the .txt files list is really huge ? Should one use xarg command with tar -r.. instead of tar -c.. ?
– Stphane
Dec 15 '15 at 22:42
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How to make my layout able to scroll down?
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As David Hedlund said, ScrollView can contain just one item... so if you had something like this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_pa...
What does ^M character mean in Vim?
... Just in case you're on Windows, Ctrl+V will probably be mapped to paste. If that's the case the defaults remap the "special character escape" key it to Ctrl+Q.
– R. Martinho Fernandes
May 1 '11 at 17:45
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