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psql: FATAL: database “” does not exist
...you by the database. Try this at a shell prompt:
createdb
and then see if you can log in again with
psql -h localhost
This will simply create a database for your login user, which I think is what you are looking for. If createdb fails, then you don't have enough rights to make your own data...
How to execute file I'm editing in Vi(m)
...prg option. Use % as a placeholder for the current file name. For example, if you were editing a python script:
:set makeprg=python\ %
Yes, you need to escape the space. After this you can simply run:
:make
If you wish, you can set the autowrite option and it will save automatically before run...
jQuery .on('change', function() {} not triggering for dynamically created inputs
...);
In that case, it will work as you expected. Also, it is better to specify some element instead of document.
Read this article for better understanding: http://elijahmanor.com/differences-between-jquery-bind-vs-live-vs-delegate-vs-on/
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Differences between INDEX, PRIMARY, UNIQUE, FULLTEXT in MySQL?
What are the differences between PRIMARY, UNIQUE, INDEX and FULLTEXT when creating MySQL tables?
3 Answers
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How do I use grep to search the current directory for all files having the a string “hello” yet disp
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You can pass in wildcards in instead of specifying file names or using stdin.
grep hello *.h *.cc
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CSS background-image - What is the correct usage?
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The path can either be full or relative (of course if the image is from another domain it must be full).
You don't need to use quotes in the URI; the syntax can either be:
background-image: url(image.jpg);
Or
background-image: url("image.jpg");
However, from W3:
So...
How to Disable landscape mode in Android?
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Add android:screenOrientation="portrait" to the activity in the AndroidManifest.xml. For example:
<activity android:name=".SomeActivity"
android:label="@string/app_name"
android:screenOrientation="portrait" />
EDIT: Since this has become a super-popular answer, I feel very guilty a...
Repeat command automatically in Linux
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Watch every 5 seconds ...
watch -n 5 ls -l
If you wish to have visual confirmation of changes, append --differences prior to the ls command.
According to the OSX man page, there's also
The --cumulative option makes highlighting "sticky", presenting a
running di...
how to POST/Submit an Input Checkbox that is disabled?
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To make it valid HTML, specifically set the value of readonly to readonly, i.e.: <input name="foo" value="bar" readonly="readonly" />
– Matt Huggins
Jan 18 '11 at 19:20
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Default value for field in Django model
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