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How to delete duplicate lines in a file without sorting it in Unix?
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From http://sed.sourceforge.net/sed1line.txt:
(Please don't ask me how this works ;-) )
# delete duplicate, consecutive lines from a file (emulates "uniq").
# First line in a set of duplicate lines is kept, rest are deleted.
s...
Twig: in_array or similar possible within if statement?
...r.active and user.id not 1 %}
{{ user.name }}
{% endfor %}
More info: http://twig.sensiolabs.org/doc/tags/for.html
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Converting an integer to a hexadecimal string in Ruby
...ach:
sprintf("%02x", 10).upcase
see the documentation for sprintf here: http://www.ruby-doc.org/core/classes/Kernel.html#method-i-sprintf
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What is the difference between Tomcat, JBoss and Glassfish?
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Tomcat is merely an HTTP server and Java servlet container. JBoss and GlassFish are full-blown Java EE application servers, including an EJB container and all the other features of that stack. On the other hand, Tomcat has a lighter memory foo...
ZSH complains about RVM __rvm_cleanse_variables: function definition file not found
...better than creating the files and deleting them at every login.
(source: http://www.csse.uwa.edu.au/programming/linux/zsh-doc/zsh_23.html)
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SQL Server Management Studio won't let me add an index to a table
... work from:
create index ix_MyTable_Column1
on dbo.MyTable(Column1 asc)
http://msdn.microsoft.com/en-us/library/ms188783.aspx
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Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...ce it specifically says "... commutative and associative binary operator"
http://spark.apache.org/docs/1.0.0/api/scala/index.html#org.apache.spark.rdd.RDD
Here is proof that reduce is NOT just a special case of foldLeft
scala> val intParList: ParSeq[Int] = (1 to 100000).map(_ => scala.util....
How to change font size on part of the page in LaTeX?
...ze{10}{12}\selectfont This is the text you need to be in 10px
More info: https://tug.org/TUGboat/tb33-3/tb105thurnherr.pdf
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How to add new item to hash
...e key given by key.
hash[:newKey] = "newValue"
From Ruby documentation:
http://www.tutorialspoint.com/ruby/ruby_hashes.htm
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Linux error while loading shared libraries: cannot open shared object file: No such file or director
...bfoo.so.1. As orip pointed out in the comments, this is explained well at http://tldp.org/HOWTO/Program-Library-HOWTO/shared-libraries.html.
In your case, you might get away with symlinking libpthread_rt.so.1 to libpthread_rt.so. No guarantees that it won't break your code and eat your TV dinners...