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How can I tell where mongoDB is storing data? (its not in the default /data/db!)
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mongod defaults the database location to /data/db/.
If you run ps -xa | grep mongod and you don't see a --dbpath which explicitly tells mongod to look at that parameter for the db location and you don't have a dbpath in your mongodb.conf, then the default location will be: /data/db/ and ...
Rails: Default sort order for a rails model?
...7 separate queries.
You can use a passed in parameter such as a date or a user_id (something that will change at run-time and so will need that 'lazy evaluation', with a lambda, like this:
scope :recent_books, lambda
{ |since_when| where("created_at >= ?", since_when) }
# Note the `where` ...
Java Stanford NLP: Part of Speech labels?
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The Penn Treebank Project. Look at the Part-of-speech tagging ps.
JJ is adjective. NNS is noun, plural. VBP is verb present tense. RB is adverb.
That's for english. For chinese, it's the Penn Chinese Treebank. And for german it's the NEGRA corpus.
CC Coordinating conjunction
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How to simulate the environment cron executes a script with?
...(screen -r). If you are checking the screen session has been created (with ps) be aware that they are sometimes in capitals (e.g. ps | grep SCREEN)
Now even nmcli and similar will fail.
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SensorUtil 传感器工具扩展：在后台和屏幕关闭时保持传感器工作 · App Inv...
... 版本
日期
修改内容
1.0
2025-10-09
初始版本
工作原理
前台服务
Android 限制后台应用的活动以节省电池。要在后台持续运行，应用必须启动前台服务...
How to replace multiple strings in a file using PowerShell
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A third option, for a pipelined one-liner is to nest the -replaces:
PS> ("ABC" -replace "B","C") -replace "C","D"
ADD
And:
PS> ("ABC" -replace "C","D") -replace "B","C"
ACD
This preserves execution order, is easy to read, and fits neatly into a pipeline. I prefer to use parenthese...
linux: kill background task
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@polm23; no, ^Z doesn't background jobs, it stops them. A subsequent bg does the actual 'backgrounding' (resumes execution in the background), and after that $! works as expected.
– falstro
Oct 16 '12 at 14:39
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How to use Java property files?
...If you use the *.properties extension you can get editor support, e.g. Eclipse has a properties file editor.
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Graphviz: How to go from .dot to a graph?
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type: dot -Tps filename.dot -o outfile.ps
If you want to use the dot renderer. There are alternatives like neato and twopi. If graphiz isn't in your path, figure out where it is installed and run it from there.
You can change the outpu...
How do I save a String to a text file using Java?
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In java8 you can try(PrintStream ps = new PrintStream("filename")) { ps.println(out); } this will handle close for you
– Anton Chikin
Feb 6 '15 at 16:14
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