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Deleting lines from one file which are in another file
...ay files that aren't too huge? The fear here is (I assume) awk running the system out of system memory to create the hash, or is there some other limitation?
– rogerdpack
Oct 16 '15 at 16:58
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Convert a list of characters into a string
... the reason for this: in my program I recv a list of int from network then convert to string where map(ord,a) is unnecessary, but join needs map(chr,a). Here's my benchmark pastebin.com/1sKFm8ma
– bigeagle
Apr 8 '12 at 15:11
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How to add a string to a string[] array? There's no .Add function
I'd like to convert the FI.Name to a string and then add it to my array. How can I do this?
13 Answers
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How to execute XPath one-liners from shell?
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One package that is very likely to be installed on a system already is python-lxml. If so, this is possible without installing any extra package:
python -c "from lxml.etree import parse; from sys import stdin; print '\n'.join(parse(stdin).xpath('//element/@attribute'))"
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Boolean vs boolean in Java
... on 3rd line (bar)?1:0 illustrates that bar (boolean) cannot be implicitly converted (casted) into an int. I am bringing this up not to illustrate the details of implementation behind JVM, but to point out that in terms of low level considerations (as memory size) one does have to prefer values over...
Set default CRAN mirror permanent in R
... it exists (which it does not in a 'factory-fresh' installation).
So do Sys.getenv("R_PROFILE") for the first option, or Sys.getenv("R_HOME") or R.home() for the second option. On macOS, the location of the second is /Library/Frameworks/R.framework/Resources/etc/.
The file may not exist, or you ...
Get the current time in C
...igured it out by now, but you would use the strptime function in time.h to convert from char * to struct tm
– KingRadical
Nov 5 '13 at 19:59
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REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
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libaio
libaio-devel
libgcc
libgomp
libstdc++
libstdc++-devel
make
sysstat
unixODBC
unixODBC-devel使用vi 命令创建一个文本文件，上面的名称直接复制进去就好
使用上传工具把 linux，oracle的安装包上传到/MNT/ISO目录下
我推荐使用 XME4 企...
C# 能否获取一个对象所占内存的大小？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...has been marshaled. In other words, it yields the size of the object when converted to an unmanaged representation. These sizes will certainly differ if the CLR’s loader has re-ordered small fields so they can be packed together on a tdAutoLayout type.
C# sizeof 对象大小
How to calculate time in hours between two dates in iOS
...are using Xcode just select help/documentation from the menu.
See: how-to-convert-an-nstimeinterval-seconds-into-minutes
--edit: See ÐąrέÐέvil's answer below for correctly handling daylight savings/leap seconds
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