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How to generate random number in Bash?

...ou specify shuf -i 1-10 -n 10 you will get all numbers from 1 to 10 exactl one. If you specify -n 15 you will still get only those 10 numbers exactly once. That is really only shuffling, not generating random numbers. – radlan Apr 27 at 13:00 ...
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Socket File “/var/pgsql_socket/.s.PGSQL.5432” Missing In Mountain Lion (OS X Server)

...lhost forces psql to use TCP/IP. Setting an environment variable PGHOST is one of the ways to achieve that. It's documented in psql's manual. share | improve this answer | fo...
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Timer & TimerTask versus Thread + sleep in Java

...r creates a queue of tasks that is continually updated. When the Timer is done, it may not be garbage collected immediately. So creating more Timers only adds more objects onto the heap. Thread.sleep() only pauses the thread, so memory overhead would be extremely low. – Darryl ...
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Are Swift variables atomic?

...raw a view when the property is changed to a different value; that is now done easier using didSet. – gnasher729 Jun 11 '14 at 9:22 ...
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Update relationships when saving changes of EF4 POCO objects

...or relation between current Tag and BlogPost. SaveChanges Edit: I guess one of my comments gave you false hope that EF will do the merge for you. I played a lot with this problem and my conclusion says EF will not do this for you. I think you have also found my question on MSDN. In reality there ...
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Converting a string to int in Groovy

...e = number as Integer } Deprecation Update In recent versions of Groovy one of the toInteger() methods has been deprecated. The following is taken from org.codehaus.groovy.runtime.StringGroovyMethods in Groovy 2.4.4 /** * Parse a CharSequence into an Integer * * @param self a CharSequence *...
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Unresolved Import Issues with PyDev and Eclipse

... One other point to note - Eclipse may need to be restarted for this to work. This only seems to work via "File -> Restart" and not by closing and reopening manually. – soulBit May 11 ...
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Remove carriage return in Unix

... So how does one change it when you want outfile = infile? – Chris Jul 20 '17 at 0:19 3 ...
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The identity used to sign the executable is no longer valid

...ioning profiles: right-click -> move to trash I saw this error exactly one year after signing up as an Apple developer. share | improve this answer | follow ...
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IllegalArgumentException or NullPointerException for a null parameter? [closed]

...ppropriate. Is there some kind of an understood standard? Or is this just one of those things that you should do whatever you prefer and both are really correct? ...