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How to empty (“truncate”) a file on linux that already exists and is protected in someway?
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You have the noclobber option set. The error looks like it's from csh, so you would do:
cat /dev/null >! file
If I'm wrong and you are using bash, you should do:
cat /dev/null >| file
in bash, you can also shorten that to:
>| file
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Can I embed a custom font in an iPhone application?
...ts and makes them available to the application.
Once the fonts have been set in the Info.plist, you can use your custom fonts as any other font in IB or programatically.
There is an ongoing thread on Apple Developer Forums:
https://devforums.apple.com/thread/37824 (login required)
And here's an...
Remove border from IFrame
...bute on the iframe element is obsolete. Use CSS instead. In HTML5 I would set a CSS property of border:0. Is there a way to make it backward compatible without causing validation errors?
– ᴍᴀᴛᴛ ʙᴀᴋᴇʀ
Feb 26 '15 at 11:31
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How to list all properties of a PowerShell object
...em" | Format-List -Property *
For certain objects, PowerShell provides a set of formatting instructions that can affect either the table or list formats. These are usually meant to limit the display of reams of properties down to just the essential properties. However there are times when you real...
C++/COM VARIANT实现二维数组 - C/C++ - 清泛网 - 专注C/C++及内核技术
...以两种不同方式来实现VARIANT二维数组的操作。
1、使用SAFEARRAY实现二维数组
SAFEARRAY安全数组可以实现多维数组，SAFEARRAY实现的步骤可以大致分为三步。
（1）创建SAFEARRAY安全数组，包括设置数组元素的类型、数据的维数，大小...
Can an enum class be converted to the underlying type?
...<typename EnumType,typename UnaryFunction>
constexpr inline void setIntegralEnumValue(EnumType& enumValue, UnaryFunction integralWritingFunction)
{
// Since using reinterpret_cast on reference to underlying enum type is UB must declare underlying type value and write to it ...
Batch script: how to check for admin rights
...y typing NET HELPMSG 2114
In this case the %errorLevel% variable will be set to 2.
Note The Server service is not started while in Safe Mode (with or without networking).
Looking for an alternative
Something that:
can be run out of the box on Windows XP and later (32 and 64 bit);
doesn't tou...
Mutex example / tutorial? [closed]
...eed to be atomic. A classic example of such an instruction is the test-and-set (TAS). When trying to acquire a lock on a resource, we might use the TAS might check to see if a value in memory is 0. If it is, that would be our signal that the resource is in use and we do nothing (or more accurately, ...
Working Soap client example
I'm trying to find a simple (ha) SOAP example in JAVA with a working service, any I seem to be finding are not working.
6 A...
What exactly do “u” and “r” string flags do, and what are raw string literals?
While asking this question , I realized I didn't know much about raw strings. For somebody claiming to be a Django trainer, this sucks.
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