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How to compare two floating point numbers in Bash?
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More conveniently
This can be done more conveniently using Bash's numeric context:
if (( $(echo "$num1 > $num2" |bc -l) )); then
…
fi
Explanation
Piping through the basic calculator command bc returns either 1 or 0.
The option -l is equivalent ...
Objective-C ARC: strong vs retain and weak vs assign
...default
Below is the detailed article link where you can find above mentioned all attributes, that will definitely help you.
Many thanks to all the people who give best answers here!!
Variable property attributes or Modifiers in iOS
1.strong (iOS4 = retain )
it says "keep this in the heap ...
In a .csproj file, what is for?
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The MSDN article on the build action property explains the differences.
None - The file is not included in the project output group and is not compiled in the build process. An example is a text file that contains documentation, such as a Readme file.
Content - The file is not compiled, but is inc...
Allowed memory size of 33554432 bytes exhausted (tried to allocate 43148176 bytes) in php
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- @panidarapu and @Don Jones: Depending on the amount of memory, and how this script is used, it could be dangerous to allow the change in memory usage in this way. Don, in your case, you can likely break the feed down into smaller chunks and parse ...
Start a git commit message with a hashmark (#)
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I love this answer. Oneliner for the new suggested solution: git config --global core.commentChar auto
– aross
Mar 12 '18 at 16:08
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Cannot overwrite model once compiled Mongoose
...a = new Schema({
name:String,
email:String,
password:String,
phone:Number,
_enabled:Boolean
});
module.exports = mongoose.model('users', userSchema);
check.js
var mongoose = require('mongoose');
var User = require('./user_model.js');
var db = mongoose.createConnection('l...
Flask raises TemplateNotFound error even though template file exists
...older='../templates', static_folder='../static')
Starting with ../ moves one directory backwards and starts there.
Starting with ../../ moves two directories backwards and starts there (and so on...).
Hope this helps
sh...
Prepend a level to a pandas MultiIndex
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A nice way to do this in one line using pandas.concat():
import pandas as pd
pd.concat([df], keys=['Foo'], names=['Firstlevel'])
An even shorter way:
pd.concat({'Foo': df}, names=['Firstlevel'])
This can be generalized to many data frames, see the...
How to tell if a file is git tracked (by shell exit code)?
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> git status --porcelain
M starthudson.sh
?? bla
Or if you do only one file at a time:
> git status --porcelain bla
?? bla
ORIGINAL
do:
git status
You will see report stating which files were updated and which ones are untracked.
You can see bla.sh is tracked and modified and ne...
ASP.NET Identity reset password
...ew ASP.NET Identity system? Or how can I reset without knowing the current one (user forgot password)?
10 Answers
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