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Why do we need RESTful Web Services?
...ze the coupling between client and server components in a distributed application.
This may be the case if your server is going to be used by many different clients that you do not have control over. It may also be the case if you want to be able to update the server regularly without needing to u...
.gitignore after commit [duplicate]
...the files.
Note In the presence of tags, always use the --tag-name-filter cat option to git filter-branch. It never hurts and will save you the head-ache when you realize later taht you needed it
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sed whole word search and replace
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\b in regular expressions match word boundaries (i.e. the location between the first word character and non-word character):
$ echo "bar embarassment" | sed "s/\bbar\b/no bar/g"
no bar embarassment
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Get the current time in C
... parameter works to return the current time.
– Super Cat
Dec 21 '15 at 0:30
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What is the Python 3 equivalent of “python -m SimpleHTTPServer”
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Using 2to3 utility.
$ cat try.py
import SimpleHTTPServer
$ 2to3 try.py
RefactoringTool: Skipping implicit fixer: buffer
RefactoringTool: Skipping implicit fixer: idioms
RefactoringTool: Skipping implicit fixer: set_literal
RefactoringTool: Skippi...
How to solve WAMP and Skype conflict on Windows 7? [closed]
...d Oct 10 '12 at 19:57
The Unfun Cat
20.5k2222 gold badges8686 silver badges114114 bronze badges
answered Jul 6 '12 at 6:46
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Delete all lines beginning with a # from a file
...th some extension:
ll -ltr *.filename_extension > list.lst
for i in $(cat list.lst | awk '{ print $8 }') # validate if it is the 8 column on ls
do
echo $i
sed -i '/^#/d' $i
done
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Printing the last column of a line in a file
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Using Perl
$ cat rayne.txt
A1 123 456
B1 234 567
C1 345 678
A1 098 766
B1 987 6545
C1 876 5434
$ perl -lane ' /A1/ and $x=$F[2] ; END { print "$x" } ' rayne.txt
766
$
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Uniq by object attribute in Ruby
...e of a Hash to enforce uniqueness. Here's a couple more ways to skin that cat:
objs.inject({}) {|h,e| h[e.attr]=e; h}.values
That's a nice 1-liner, but I suspect this might be a little faster:
h = {}
objs.each {|e| h[e.attr]=e}
h.values
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What does “export” do in shell programming? [duplicate]
... Yes - because they are copied for use by the subshell. And thus any modification in the subshell will have no effect as the copy is dropped on return-from-subshell: Subshells, environment variables, and scope. The same happens for environment variables: the are copied - but for any kind of subproce...