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How to create an empty file at the command line in Windows?
...le.txt
copy /b NUL EmptyFile.txt
"How to create empty text file from a batch file?" (2008) also points to:
type NUL > EmptyFile.txt
# also
echo. 2>EmptyFile.txt
copy nul file.txt > nul # also in qid's answer below
REM. > empty.file
fsutil file createnew file.cmd 0 # to create a file...
Solution for “Fatal error: Maximum function nesting level of '100' reached, aborting!” in PHP
...
Rather than going for a recursive function calls, work with a queue model to flatten the structure.
$queue = array('http://example.com/first/url');
while (count($queue)) {
$url = array_shift($queue);
$queue = array_merge($queue, find_urls($url));
}
function find_urls($url)
{
...
Avoiding “resource is out of sync with the filesystem”
..., and you may find you can get through the entire operation using multiple retries.
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Scheduling R Script
...
Actually under Windows you do not even have to create a batch file first to use the Scheduler.
Open the scheduler: START -> All Programs -> Accesories -> System Tools -> Scheduler
Create a new Task
under tab Action, create a new action
choose Start Program
browse t...
What does “@” mean in Windows batch scripts
...
It means not to output the respective command. Compare the following two batch files:
@echo foo
and
echo foo
The former has only foo as output while the latter prints
H:\Stuff>echo foo
foo
(here, at least). As can be seen the command that is run is visible, too.
echo off will turn th...
How do I wait for an asynchronously dispatched block to finish?
... That’s probably because your completion block is dispatched to the main queue? The queue is blocked waiting for the semaphore and therefore never executes the block. See this question about dispatching on the main queue without blocking.
– zoul
Jun 8 '12 at ...
怎么往SetTimer的回调函数传递参数 - C/C++ - 清泛网 - 专注C/C++及内核技术
...TimerFunc(HWND hwnd,UINT uMsg,UINT_PTR idEvent,DWORD dwTime)
{
Sleep(5000);
}
DWORD CALLBACK AutoBakup( PVOID lpParam )
{
MSG msg;
UINT id=SetTimer(NULL,1,1000,TimerFunc);
BOOL bRet;
while( ((bRet = GetMessage(&msg,NULL,0,0))!= 0) )
{
if(bRet==-1)
...
How can I check if an argument is defined when starting/calling a batch file?
I'm trying to use the following validation logic in a batch file but the "usage" block never executes even when no parameter is supplied to the batch file.
...
How to prevent auto-closing of console after the execution of batch file
What command can I put at the end of a batch file to prevent auto-closing of the console after the execution of the file?
1...
Go Error Handling Techniques [closed]
...
I made a library for streamlined error handling and piping through a queue of Go functions.
You can find it here: https://github.com/go-on/queue
It has a compact and a verbose syntactic variant.
Here is an example for the short syntax:
import "github.com/go-on/queue/q"
func SaveUser(w htt...