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Reminder - \r\n or \n\r?
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I'd use the word 'return' to remember, the r comes before the n.
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Split output of command by columns using Bash?
...t line (example for line no. 6) is done with head and tail and the correct word (word no. 4) can be captured with awk:
command|head -n 6|tail -n 1|awk '{print $4}'
How to change column datatype in SQL database without losing data
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In other words: NULL remains NULL, 0 becomes False, non-zero values (1, -1, 1999, -987...) become True.
– Álvaro González
Feb 14 '14 at 12:44
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How to get current relative directory of your Makefile?
... for Makefiles invoked from any directory:
mkfile_path := $(abspath $(lastword $(MAKEFILE_LIST)))
current_dir := $(notdir $(patsubst %/,%,$(dir $(mkfile_path))))
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Regex - how to match everything except a particular pattern
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If you want to match a word A in a string and not to match a word B. For example:
If you have a text:
1. I have a two pets - dog and a cat
2. I have a pet - dog
If you want to search for lines of text that HAVE a dog for a pet and DOESN'T have c...
Swift - which types to use? NSString or String
...Int data type is stated, in the book, to be the same as the architecture's word size. NSInteger is also the same size as the word size of the architecture.
– MaddTheSane
Jun 5 '14 at 5:35
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Is there a goto statement in Java?
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The Java keyword list specifies the goto keyword, but it is marked as "not used".
It was in the original JVM (see answer by @VitaliiFedorenko), but then removed. It was probably kept as a reserved keyword in case it were to be added to ...
Fluent and Query Expression — Is there any benefit(s) of one over other?
...range variables. This happens in three situations:
When using the let keyword
When you have multiple generators (from clauses)
When doing joins
Here's an example (from the LINQPad samples):
string[] fullNames = { "Anne Williams", "John Fred Smith", "Sue Green" };
var query =
from fullName in...
Recursively look for files with a specific extension
...hich an unmatched glob is swept away entirely, replaced with a set of zero words. And globstar that allows to recurse through all the directories
shopt -s extglob nullglob globstar
Now all you need to do is form the glob expression to include the files of a certain extension which you can do as ...
C# Class naming convention: Is it BaseClass or ClassBase or AbstractClass
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Personally, I would recommend against adding the word base at all. You never know when you'll have to change the code around and it won't be the base object anymore. That being said, we have done this in the past, we prefixed the word Base on the front. It seems to flow ...