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How do I change the number of open files limit in Linux? [closed]
...g a ulimit -n 2048. This will only reset the limit for your current shell and the number you specify must not exceed the hard limit
Each operating system has a different hard limit setup in a configuration file. For instance, the hard open file limit on Solaris can be set on boot from /etc/system...
Create a CSV File for a user in PHP
...re important. To ensure good display, put doublequotes around your fields, and don't forget to replace double-quotes inside fields to double double-quotes: `echo '"'.str_replace('"','""',$record1).'","'.str_replace....
– Mala
Jul 1 '10 at 21:21
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Adding hours to JavaScript Date object?
...dding an hour causing it to roll over to the next day, would this catch it and increment everything properly (day month year)?
– cdoern
May 14 at 16:40
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Error :Request header field Content-Type is not allowed by Access-Control-Allow-Headers
...s-support-in-asp-net-web-api-rc-version.aspx". It is working successfully, and i post data from client side to server successfully.
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How to measure time taken by a function to execute
...is required to import the performance class
Using console.time: (non-standard) (living standard)
console.time('someFunction')
someFunction() // Whatever is timed goes between the two "console.time"
console.timeEnd('someFunction')
Note: The string being pass to the time() and timeEnd() metho...
How do I pick 2 random items from a Python set? [duplicate]
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Use the random module: http://docs.python.org/library/random.html
import random
random.sample(set([1, 2, 3, 4, 5, 6]), 2)
This samples the two values without replacement (so the two values are different).
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Count occurrences of a char in plain text file
...o f <file> | wc -l
Note: Besides much easier to remember/duplicate and customize, this is about three times (sorry, edit! botched the first test) faster than Vereb's answer.
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What would be the Unicode character for big bullet in the middle of the character?
...! Came here on an attempt to find something larger than the Large Circle and what a surprise - it turned out to be the Medium Circle! =) Thank you, Mark!
– Mar
May 3 '19 at 18:05
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Why java.util.Optional is not Serializable, how to serialize the object with such fields
...The short answer is that the Java Lambda (JSR-335) expert group considered and rejected it. That note, and this one and this one indicate that the primary design goal for Optional is to be used as the return value of functions when a return value might be absent. The intent is that the caller immedi...
Git - deleted some files locally, how do I get them from a remote repository
...e HEAD~n, or simply fire up gitk, find the SHA1 of the appropriate commit, and paste it in.
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