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Comparing two files in linux terminal
...ormat options to filter required data.
Following three options can use to select the relevant group for each option:
'%<' get lines from FILE1
'%>' get lines from FILE2
'' (empty string) for removing lines from both files.
E.g: diff --changed-group-format="%<" --unchanged-...
How to play ringtone/alarm sound in Android
... open the Media application, browse to your MP3 file, long press on it and select "Use as phone ringtone".
Error is gone!
Edit: same trouble with notification sounds (e.g. for SMS) solved using Ringdroid application
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AngularJS disable partial caching on dev machine
...ew.
A drop down menu symbol will appear next to "Net" (title of the view).
Select "Disable Browser Cache" from the drop down menu.
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Separation of business logic and data access in django
...ActivateUserForm(forms.Form):
user_id = IntegerField(widget = UsernameSelectWidget, verbose_name="Select a user to activate")
# the username select widget is not a standard Django widget, I just made it up
def clean_user_id(self):
user_id = self.cleaned_data['user_id']
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How do I check if string contains substring? [duplicate]
...shopping cart that displays product options in a dropdown menu and if they select "yes", I want to make some other fields on the page visible.
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How to find the created date of a repository project on GitHub?
...across this solution. Here's the answer.
Right-click on your Profile and select Settings
In your 'Settings' page, Sidebar on the left click Security
You should see all the details under the 'Security history'
You can hover on the date to display the full date and time. Or you can click repo.create...
Rearrange columns using cut
...made up of
one
range, or many ranges separated by commas. Selected input is written
in the same order that it is read, and is written exactly once.
It reaches field 1 first, so that is printed, followed by field 2.
Use awk instead:
awk '{ print $2 " " $1}' file.txt
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Android: Generate random color on click?
...
This approach might not yield the best results, It always ends up with a selection of similar colors that way too dark or way too bright.
Semi-random approach :
If you need some fresh and shiny colors then use the following simple class, that I wrote previously when I had the same issues. It's ...
How can I open a link in a new window?
...
No need of using jQuery selector in the click handler so line $(this).attr('target', '_blank'); could be changed to this.target = "_blank"; Also, if the anchor links on the page can be modified to have rel="external" attributes then you could creat...
Extreme wait-time when taking a SQL Server database offline
...s statistic update)
To find connections, use sys.sysprocesses
USE master
SELECT * FROM sys.sysprocesses WHERE dbid = DB_ID('MyDB')
To force disconnections, use ROLLBACK IMMEDIATE
USE master
ALTER DATABASE MyDB SET SINGLE_USER WITH ROLLBACK IMMEDIATE
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