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Escape regex special characters in a Python string
...ackoverflow\.com
Repeating it here:
re.escape(string)
Return string with all non-alphanumerics backslashed; this is useful if you want to match an arbitrary literal string that may have regular expression metacharacters in it.
As of Python 3.7 re.escape() was changed to escape only characters whi...
What is the volatile keyword useful for?
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volatile has semantics for memory visibility. Basically, the value of a volatile field becomes visible to all readers (other threads in particular) after a write operation completes on it. Without volatile, readers could see some non-updated value.
To answer your question: Y...
How to only get file name with Linux 'find'?
I'm using find to all files in directory, so I get a list of paths. However, I need only file names. i.e. I get ./dir1/dir2/file.txt and I want to get file.txt
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How to specify more spaces for the delimiter using cut?
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Actually awk is exactly the tool you should be looking into:
ps axu | grep '[j]boss' | awk '{print $5}'
or you can ditch the grep altogether since awk knows about regular expressions:
ps axu | awk '/[j]boss/ {print $5}'
But...
JPG vs. JPEG image formats
... Photographic Expert Group File Format was ‘.jpeg’; however in Windows all files required a three letter file extension. So, the file extension was shortened to ‘.jpg’. However, Macintosh was not limited to three letter file extensions, so Mac users used ‘.jpeg’. Eventually, with upgrade...
MySQL dump by query
...he database by query. What he asked and what he meant were different. He really wanted to just mysqldump all tables.
mysqldump --tables myTable --where="id < 1000"
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elasticsearch v.s. MongoDB for filtering application [closed]
...to elastic. Our use case differs from yours in that our Mongo data changes all the time: a record, or a subset of the fields of a record, can be updated several times a day and this can call for re-indexing of that record to elastic. For that reason alone, using elastic as the sole data store is not...
Including non-Python files with setup.py
... do I make setup.py include a file that isn't part of the code? (Specifically, it's a license file, but it could be any other thing.)
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What effect(s) can the virtual keyword have in Entity Framework 4.1 POCO Code First?
...effect when used on the properties in EF Code First?. Can someone describe all of its ramifications in different situations?
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How can I add a string to the end of each line in Vim?
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Is there a way to insert '' at the same column, since all lines are not of same length, so line 1 might have '' at 15th column, but line 2 has '*' at 25th column.
– Aman Jain
Jul 21 '10 at 20:41
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