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write a shell script to ssh to a remote machine and execute commands
...andard output and standard error as each host completes
-x args: Passes extra SSH command-line arguments
-o option: Can be used to give options in the format used in the configuration file.(/etc/ssh/ssh_config) (~/.ssh/config)
-p parallelism: Use the given number as the maximum number of con...
How to make “if not true condition”?
...'ll just say that grep can take a file name on its cmd-line, so why invoke extra processes and pipe constructions when you don't have to? ;-)
I hope this helps.
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Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...plicit val sc = new SparkContext(conf)
val range = ('a' to 'z').map(_.toString)
val rdd = sc.parallelize(range)
println(range.reduce(_ + _))
println(rdd.reduce(_ + _))
println(rdd.fold("")(_ + _))
}
Print out:
abcdefghijklmnopqrstuvwxyz
abcghituvjklmwxyzqrsdefnop
defghinopjklmqrst...
How can I prevent the scrollbar overlaying content in IE10?
...nt is inactive. Scrollbars do not overlay content, and therefore
take up extra layout space along the edges of the element where they
appear.
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How to compile and run C/C++ in a Unix console/Mac terminal?
...ake: command not found" <-- You have to have the developer tool and the extra components downloaded.
– dgig
Apr 30 '14 at 15:20
17
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How do I insert a linebreak where the cursor is without entering into insert mode in Vim?
...ink) the author requested. When I tested it, vi automatically removed the extra spaces for me; use 'x' to delete them if yours doesn't. And why do vi commands look like modem line noise? :-)
– Adam Liss
Oct 26 '08 at 3:51
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How to find out client ID of component for ajax update/render? Cannot find component with expression
...client ID. An absolute client ID starts with the NamingContainer separator character, which is by default :.
<h:form id="form">
<p:commandLink update="result"> <!-- FAIL! -->
</h:form>
<h:panelGroup id="result" />
<h:form id="form">
<p:commandLink ...
How do I size a UITextView to its content?
...PostText.contentSize.height;
self.mainPostText.frame = _f;
It fixes the "extra line" problem on 6+.
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What are the differences between B trees and B+ trees?
...e work and more disk reads which makes sense because the tree has all this extra data in it. I don't get it.
– Eric
Sep 2 '15 at 2:45
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How to determine the current shell I'm working on
...nd that if you do this from within a subshell then it can lead to spurious extra lines by matching the parent's PID as well as the actual shell process. For this, I use -q instead of -p: SHELL=$(ps -ocomm= -q $$)
– Steve
Dec 28 '17 at 23:09
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