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how to use sed, awk, or gawk to print only what is matched?
I see lots of examples and man pages on how to do things like search-and-replace using sed, awk, or gawk.
11 Answers
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How do I use PHP to get the current year?
I want to put a copyright notice in the footer of a web site, but I think it's incredibly tacky for the year to be out-of-date. How would I make the year update automatically with PHP 4 and PHP 5 ?
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Adding a newline into a string in C#
...ment.NewLine whenever you want in any string. An example:
string text = "fkdfdsfdflkdkfk@dfsdfjk72388389@kdkfkdfkkl@jkdjkfjd@jjjk@";
text = text.Replace("@", "@" + System.Environment.NewLine);
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How to declare array of zeros in python (or an array of a certain size) [duplicate]
I am trying to build a histogram of counts... so I create buckets.
I know I could just go through and append a bunch of zeros i.e something along these lines:
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Read specific columns from a csv file with csv module?
... you don't include your print statement in your for loop.
This is most likely the end of your code:
for row in reader:
content = list(row[i] for i in included_cols)
print content
You want it to be this:
for row in reader:
content = list(row[i] for i in included_cols)
print ...
Capturing Groups From a Grep RegEx
I've got this little script in sh (Mac OSX 10.6) to look through an array of files. Google has stopped being helpful at this point:
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How to find path of active app.config file?
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Cédric RupCédric Rup
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Sleep for milliseconds
I know the POSIX sleep(x) function makes the program sleep for x seconds. Is there a function to make the program sleep for x milliseconds in C++?
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Typical .gitignore file for an Android app
Just put an Android project under git ( beanstalk ) version control via the command line ( mac terminal ). Next step is to set up exclusions.
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Cast int to varchar
...NVERT(expr USING transcoding_name)
Your original query had the syntax backwards.
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