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How to track child process using strace?
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There is a perl script called strace-graph. Here is a version from github. It is packaged with crosstool-ng versions of compilers. It works for me even used cross platform.
ARM Linux box.
$ ./strace -f -q -s 100 -o app.trc -p 449
$ tftp...
Defining private module functions in python
...ou define private names in a module, those names will be imported into any script that uses the syntax, 'import module_name'. Thus, assuming you had correctly defined in your example the module private, _num, in a.py, like so..
#a.py
_num=1
..you would be able to access it in b.py with the module...
Is it possible to put CSS @media rules inline?
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Note to future explorers that the <script> tag is often stripped by email clients when an email is forwarded, so people tend towards using in-line styles for emails. And this means no media queries. I'm currently searching for the best practices for this si...
How to delete all rows from all tables in a SQL Server database?
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I had to delete all the rows and did it with the next script:
DECLARE @Nombre NVARCHAR(MAX);
DECLARE curso CURSOR FAST_FORWARD
FOR
Select Object_name(object_id) AS Nombre from sys.objects where type = 'U'
OPEN curso
FETCH NEXT FROM curso INTO @Nombre
WHILE (@@FETCH_STATUS &...
Is it possible to install iOS 6 SDK on Xcode 5?
...s a "Base SDK"? for details on how to set it up. You can use my fix-xcode
script to link everything for you every time you upgrade.
The only trick is getting the old SDKs. If you don't have them, you generally need to download old versions of Xcode (still available on developer.apple.com), open th...
startsWith() and endsWith() functions in PHP
...= 0;
}
This should be one of the fastest solutions on PHP 7 (benchmark script). Tested against 8KB haystacks, various length needles and full, partial and no match cases. strncmp is a touch faster for starts-with but it cannot check ends-with.
...
How does data binding work in AngularJS?
...owsers and is totally predictable.
To contrast dirty-checking (AngularJS) vs change listeners (KnockoutJS and Backbone.js): While dirty-checking may seem simple, and even inefficient (I will address that later), it turns out that it is semantically correct all the time, while change listeners have ...
Batch files - number of command line arguments
Just converting some shell scripts into batch files and there is one thing I can't seem to find...and that is a simple count of the number of command line arguments.
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MySQL “incorrect string value” error when save unicode string in Django
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If you have this problem here's a python script to change all the columns of your mysql database automatically.
#! /usr/bin/env python
import MySQLdb
host = "localhost"
passwd = "passwd"
user = "youruser"
dbname = "yourdbname"
db = MySQLdb.connect(host=host, user...
Loop through files in a folder using VBA?
...l
Don't forget to set a reference in the Visual Basic Editor to Microsoft Scripting Runtime (by using Tools > References)
Give it a try!
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