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Portable way to get file size (in bytes) in shell?
...at --format="%s" FILE , but Solaris I have access to doesn't have stat command. What should I use then?
14 Answers
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What's the best way to inverse sort in scala?
...e by method sorted with an implicit Ordering, which you may make explicit, and Ordering has a reverse (not the list reverse below)
You can do
list.sorted(theOrdering.reverse)
If the ordering you want to reverse is the implicit ordering, you can get it by implicitly[Ordering[A]] (A the type you'r...
Timeout a command in bash without unnecessary delay
This answer to Command line command to auto-kill a command after a certain amount of time
23 Answers
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Starting python debugger automatically on error
...e some time, yet I have never found a suitable solution. If I run a script and I come across, let's say an IndexError, python prints the line, location and quick description of the error and exits. Is it possible to automatically start pdb when an error is encountered? I am not against having an ext...
Undefined symbols for architecture i386: _OBJC_CLASS_$_SKPSMTPMessage", referenced from: error
... target. Normally Xcode does this for you, but sometimes it loses the plot and you need to add the .m file manually.
To do this:
TargetSettings -> Build Phases -> Compile Sources -> add your .m class ->Build and Run
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Get all related Django model objects
...
It doesn't show ManyToMany connections and was deprecated. In Django 1.8+ it's recommended to be replaced with _meta.get_fields(): docs.djangoproject.com/en/1.10/ref/models/meta/… (see reverse in the _get_fields() source also)
– int_ua
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Stop Mongoose from creating _id property for sub-document array items
...: ObjectId, ref: Student.modelName }, performance: [performanceSchema] }); and that stopped _id creation on the studentSchema but retained _id creation on the objects in the performance array of sub-documents. Not sure if both _id: false and id: false are needed.
– Web User
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How to get everything after a certain character?
I've got a string and I'd like to get everything after a certain value. The string always starts off with a set of numbers and then an underscore. I'd like to get the rest of the string after the underscore. So for example if I have the following strings and what I'd like returned:
...
What is the most efficient way to store a list in the Django models?
...ed as a one-to-many foreign key relationship to a Friends table? I understand that myFriends are just strings but I would think that a better design would be to create a Friend model and have MyClass contain a foreign key realtionship to the resulting table.
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Merge PDF files
...splitting documents page by page,
* merging documents page by page,
(and much more)
Here's a sample program that works with both versions.
#!/usr/bin/env python
import sys
try:
from PyPDF2 import PdfFileReader, PdfFileWriter
except ImportError:
from pyPdf import PdfFileReader, PdfFil...