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How to get the source directory of a Bash script from within the script itself?
..."${BASH_SOURCE[0]}"
while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
DIR="$( cd -P "$( dirname "$SOURCE" )" >/dev/null 2>&1 && pwd )"
SOURCE="$(readlink "$SOURCE")"
[[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relat...
Android App Not Install. An existing package by the same name with a conflicting signature is alread
...ion of app I'm updating "versionno" and "versionname" in app build.gradle file. Now I have made an release build with signed key, now while im trying to install that build in it through an error ::: An existing pacakage by the same name with a conflicting signature is already installed . And not ge...
Is it possible to start activity through adb shell? [duplicate]
... with adb shell pm list packages -f and retrieve it with adb pull /path/to/file.apk C:\some\folder to use with the aapt command Chris commented. (aapt is in build-tools)
– Christopher Galpin
May 29 '14 at 23:12
...
List goals/targets in GNU make that contain variables in their definition
I have a fairly large makefile that creates a number of targets on the fly by computing names from variables. (eg foo$(VAR) : $(PREREQS)). Is there any way that gnu make can be convinced to spit out a list of targets after it has expanded these variables?
...
Rails 3.1: Engine vs. Mountable App
...specify anything in parent_app/config/routes.rb. Specifying the gem in Gemfile is enough for the parent app to inherit the models, routes etc. The engine routes are specified as:
# my_engine/config/routes.rb
Rails.application.routes.draw do
# whatever
end
No namespacing of models, contro...
How can I install pip on Windows?
...ed-to-install-pip:
Download get-pip.py, being careful to save it as a .py file rather than .txt. Then, run it from the command prompt:
python get-pip.py
You possibly need an administrator command prompt to do this. Follow Start a Command Prompt as an Administrator (Microsoft TechNet).
This inst...
Golang production web application configuration
...nfigure if you read its documentation (HTML version). My whole haproxy.cfg file for one of my Go projects follows, in case you need a starting pont.
global
log 127.0.0.1 local0
maxconn 10000
user haproxy
group haproxy
daemon
defaults
l...
u'\ufeff' in Python string
...to this on Python 3 and found this question (and solution).
When opening a file, Python 3 supports the encoding keyword to automatically handle the encoding.
Without it, the BOM is included in the read result:
>>> f = open('file', mode='r')
>>> f.read()
'\ufefftest'
Giving the ...
What is InnoDB and MyISAM in MySQL?
...current inserts: If a table has no free blocks in
the middle of the data file, you can INSERT new rows into it at the
same time that other threads are reading from the table. MySqlDoc
That is why, MyISAM is faster and takes less space. For instance, the MySQL MyISAM Storage Engine does not sup...
记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...了验证这种可能，我搜索了一下MongoDB日志：
shell> grep FileAllocator /path/to/log
[FileAllocator] allocating new datafile ... filling with zeroes...
[FileAllocator] done allocating datafile ... took ... secs
我使用的文件系统是ext4（xfs也不错 ），创建数据文...