大约有 40,000 项符合查询结果（耗时：0.0725秒） [XML]
Nohup is not writing log to output file
...d the script ran periodically via cron.
I was able to resolve the problem by:
redirecting the stdin , stdout and stderr
ensuring the the script being invoked via nohup didn't run anything else in the background
PS: my scripts were written in ksh running on RHEL
...
What is the maximum number of characters that nvarchar(MAX) will hold?
...
Max. capacity is 2 gigabytes of space - so you're looking at just over 1 billion 2-byte characters that will fit into a NVARCHAR(MAX) field.
Using the other answer's more detailed numbers, you should be able to store
(2 ^ 31 - 1 - 2) / 2 = 1'073'...
Move an array element from one array position to another
...e performs operations on the array in-place, so a return is not necessary. By extension, this move is an in-place operation. If you want to avoid that and return a copy, use slice.
Stepping through the code:
If new_index is greater than the length of the array, we want (I presume) to pad the arra...
npm - how to show the latest version of a package
...
The npm view <pkg> version prints the last version by release date. That might very well be an hotfix release for a older stable branch at times.
The solution is to list all versions and fetch the last one by version number
$ npm view <pkg> versions --json | jq -r '.[...
Return first match of Ruby regex
I'm looking for a way to perform a regex match on a string in Ruby and have it short-circuit on the first match.
5 Answers
...
MySQL connection not working: 2002 No such file or directory
...
I had a similar problem and was able to solve it by addressing my mysql with 127.0.0.1 instead of localhost.
This probably means I've got something wrong in my hosts setup, but this quick fix get's me going for right now.
...
Get current stack trace in Ruby without raising an exception
...y caller is an instance method. Since Kernel module is included in every Ruby class (except BasicObject in 1.9), it's available as instance method on any object (it's private, though). You can't call it as Kernel.new.caller simply because you can't instantiate a module (it doesn't have new method).
...
How do you reference a capture group with regex find and replace in Visual Studio 2012, 2013, 2015,
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
... to have Compass distributed. I started to work on it from within Compass, by integrating with data grid solutions like GigaSpaces, Coherence, and Terracotta, but it's not enough.
At its core, a distributed Lucene solution needs to be sharded. Also, with the advancement of HTTP and JSON as ubiquito...
Using the rJava package on Win7 64 bit with R
...packages("rJava")
The binary package from CRAN should pick up on the jvm by itself. Experts only: to build rJava from source, you need the --merge-multiarch flag:
install.packages('rJava', type = 'source', INSTALL_opts='--merge-multiarch')
Old anwser:
(Note: many of folks in other answers/co...