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How do I execute any command editing its file (argument) “in place” using bash?
...
A sort needs to see all input before it can start to output. For this reason, the sort program can easily offer an option to modify a file in-place:
sort temp.txt -o temp.txt
Specifically, the documentation of GNU sort says:
Normally, sort reads all input before...
PHP - include a php file and also send query parameters
..._SESSION['SomeVar'];
?>
And in the calling file
<?php
session_start();
$_SESSION['SomeVar'] = $SomeVAR;
include('myFile.php');
echo $MySomeVAR;
?>
Would this circumvent the "suggested" need to Functionize the whole process?
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How do you maintain development code and production code? [closed]
...ugs in a separate branch)
the other patch branches will have the luxury to start from a well-defined production label
When it comes to dev branch, you can have one trunk, unless you have other development efforts you need to make in parallel like:
massive refactoring
testing of a new technical l...
Setting Windows PowerShell environment variables
...t's probably
a lot better to use your profile to initiate the
settings. On startup, PowerShell will run any .ps1
files it finds in the WindowsPowerShell directory under
My Documents folder. Typically you have a profile.ps1
file already there. The path on my computer is
C:\Users\JaredPar\Documents\W...
Execute combine multiple Linux commands in one line
...ground and thus the second job can't know the result, since both jobs will start at the same time. So you might as well just write: { tail -f my.log & }; ./myscript
– Nikos C.
Jun 4 '15 at 9:08
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How to call an external command?
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Some hints on detaching the child process from the calling one (starting the child process in background).
Suppose you want to start a long task from a CGI script. That is, the child process should live longer than the CGI script execution process.
The classical example from the subproc...
Why would someone use WHERE 1=1 AND in a SQL clause?
...<condition>
and concatenate them all together. With the 1=1 at the start, the initial and has something to associate with.
I've never seen this used for any kind of injection protection, as you say it doesn't seem like it would help much. I have seen it used as an implementation convenience...
What is “thread local storage” in Python, and why do I need it?
...-1 and Thread-2 accordingly
sleep(1)
foo()
>> T().start(); T().start()
I'm called from Thread-2
I'm called from Thread-1
Here threading.local() is used as a quick and dirty way to pass some data from run() to bar() without changing the interface of foo().
Note that using...
How do I trim leading/trailing whitespace in a standard way?
...endp )
*(endp + 1) = '\0';
/* Shift the string so that it starts at str so that if it's dynamically
* allocated, we can still free it on the returned pointer. Note the reuse
* of endp to mean the front of the string buffer now.
*/
endp = str;
if( frontp != st...
Select every Nth element in CSS
... 4n and 4n + 4 with regards to :nth-child(). If you use the n variable, it starts counting at 0. This is what each selector would match:
:nth-child(4n)
4(0) = 0
4(1) = 4
4(2) = 8
4(3) = 12
4(4) = 16
...
:nth-child(4n+4)
4(0) + 4 = 0 + 4 = 4
4(1) + 4 = 4 + 4 = 8
4(2) + 4 = 8 + 4 = 12
4(3) + 4...