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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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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...
Copy files from one directory into an existing directory
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@CiroSantilli六四事件法轮功包卓轩 If you copy a directory, cp will create a directory and copy all the files into it. If you use the pretend folder called ".", which is the same as the directory holding it, the copy behaves this way. Let's say t1 c...
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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Chaining multiple filter() in Django, is this a bug?
... potentially different row that matches B.
Look at the example here:
https://docs.djangoproject.com/en/dev/topics/db/queries/#spanning-multi-valued-relationships
particularly:
Everything inside a single filter() call is applied simultaneously to filter out items matching all those requiremen...
Grunt watch error - Waiting…Fatal error: watch ENOSPC
...ready loaded, that pony is fainting with exhaustion.
An alternative (perhaps comparable to taking excess garbage off of pony and placing in the dump), is to run:
npm dedupe
Then go congratulate yourself for making pony happy.
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PostgreSQL database default location on Linux
...sually see the running server with something like this:
[root@server1 ~]# ps auxw | grep postgres | grep -- -D
postgres 1535 0.0 0.1 39768 1584 ? S May17 0:23 /usr/local/pgsql/bin/postgres -D /usr/local/pgsql/data
Note that it is possible, though not very frequent, to run two in...