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How to delete from a text file, all lines that contain a specific string?
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To remove the line and print the output to standard out:
sed '/pattern to match/d' ./infile
To directly modify the file – does not work with BSD sed:
sed -i '/pattern to match/d' ./infile
Same, but for BSD sed (Mac OS X and FreeBSD) –...
How can I convert string to datetime with format specification in JavaScript?
...ave to parse the string yourself (should be easy with regular expressions) and create a new Date object with explicit values for year, month, date, hour, minute and second.
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How do I keep a label centered in WinForms?
...Set Label's AutoSize property to False, TextAlign property to MiddleCenter and Dock property to Fill.
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Windows can't find the file on subprocess.call()
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When the command is a shell built-in, add a 'shell=True' to the call.
E.g. for dir you would type:
import subprocess
subprocess.call('dir', shell=True)
To quote from the documentation:
The only time you need to specify shell=True ...
Tips for a successful AppStore submission? [closed]
In a day or two I'll be ready to submit my iPhone app to the AppStore and I'm curious whether people who have gone through this process have any tips / suggestions for a smooth submission process.
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SQL to find the number of distinct values in a column
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can you expand this example to distinct on multiple columns?
– eugene
Mar 5 '15 at 6:41
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Display date/time in user's locale format and time offset
I want the server to always serve dates in UTC in the HTML, and have JavaScript on the client site convert it to the user's local timezone.
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How do Python functions handle the types of the parameters that you pass in?
...tely use an object of a type "as if" it was an object of a different type, and all elementary operations on the object are delegated to its type.
This has nothing to do with names. A name in Python doesn't "have a type": if and when a name's defined, the name refers to an object, and the object do...
Extracting bits with a single multiplication
I saw an interesting technique used in an answer to another question , and would like to understand it a little better.
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How do I restart a service on a remote machine in Windows? [closed]
...ently, I'm doing this via Remote Desktop. How can it be done from the command line on my local machine?
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