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Bash conditionals: how to “and” expressions? (if [ ! -z $VAR && -e $VAR ])
...> VAR=/tmp
pax> if [[ -e $VAR ]] ; then echo yes ; fi
yes
In other words, just use:
if [[ -e "$var" ]] ; then
echo "'$var' exists"
fi
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How to fully clean bin and obj folders within Visual Studio?
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This site: https://sachabarbs.wordpress.com/2014/10/24/powershell-to-clean-visual-studio-binobj-folders/ uses William Kempf's powershell commands to remove any bin and obj folders from the current directory and sub directories. It should be possible to ru...
Why aren't superclass __init__ methods automatically invoked?
...e, that is clearly not the case for initializing". There is nothing in the words construction/initialization that makes this "obvious" to anyone. And __new__ doesn't automatically invoke superclass __new__ either. So your claim that the key distinction is that construction necessarily involves the c...
Do Git tags only apply to the current branch?
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In other words, tags are just nice names for the ugly git hashes. The tag (and the hash) exists no matter which branches exist(ed).
– C-Otto
Jan 30 '13 at 20:58
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获取文件系统映像及恢复删除的数据（FAT文件系统格式描述） - C/C++ - 清泛...
...Data;
devInfoData.cbSize = sizeof(devInfoData);
for ( DWORD dwCount = 0; ::SetupDiEnumDeviceInfo(hDevInfo, dwCount, &devInfoData); ++dwCount ) // enumerating all devices
{
DWORD dwSize = 0;
DWORD dwDataType = 0;
DWORD dwRemovalPolic...
How to achieve function overloading in C?
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@hqt The answer doesn't ever mention the word overloading.
– kyrias
Jun 20 '13 at 16:12
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What's the difference between git reflog and log?
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A word of caution: you sometimes CAN lose data because reflog entries do not persist eternally - they are purged upon certain conditions. See this answer and the docs for git-reflog and git-gc. Generally, if the destructive ope...
Method chaining - why is it a good practice, or not?
...urally as "this code is adding sauce to the PizzaBuilder object". In other words, I see the orchestrator (the one doing the adding) as the method in which the code list.add(someItem) or PizzaBuilder.addSauce() is embedded. But I just think the PizzaBuilder example is a little artificial. Your exampl...
What is the difference between a var and val definition in Scala?
...point to a different Array, but the array itself can be modified. In other words the contents/elements of the array can be modified." So it is like how final works in Java.
– Daniel Pryden
Nov 24 '09 at 17:04
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Compare version numbers without using split function
...pending zeroes to a portion of the version number is irrelevant. In other words, "00001" is equal to "1" in the 2nd part of the version string.
– JohnD
Sep 27 '11 at 11:34
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