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Java String new line
..., because on each OS, new line refers to a different set of character(s);
Unix and modern Mac's : LF (\n)
Windows : CR LF (\r\n)
Older Macintosh Systems : CR (\r)
LF is the acronym of Line Feed and CR is the acronym of Carriage Return. The escape characters are wr...
【App Inventor 2 数据可视化】使用柱状图和饼图收集数据 - App应用开发 - ...
...值。这是一个列表的列表！
“列表的列表”是数据科学编程的重要数据结构。数据通常采用这种格式。想象一个每行包含两个元素的长列表，例如有两列的电子表格:
添加3个列表块到现有代码块中:
对于第一个插槽，元素...
Run ssh and immediately execute command [duplicate]
I'm trying to find UNIX or bash command to run a command after connecting to an ssh server. For example:
3 Answers
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How to modify a text file?
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Do unix tools like awk/sed do something similar in their code?
– Manish Gill
Mar 22 '13 at 19:16
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Why does SIGPIPE exist?
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@Arvid SIGPIPE was invented by Unix people, to solve a problem they were having in their environment in which filter programs are extremely common, All we have to do is read the boot scripts that bring up the system.
– Kaz
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\r\n, \r and \n what is the difference between them? [duplicate]
...in Mac OS before X
\n = LF (Line Feed) → Used as a new line character in Unix/Mac OS X
\r\n = CR + LF → Used as a new line character in Windows
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Should developers have administrator permissions on their PC
...that administrative privileges are far less of an issue for development on unix-oid or mainframe systems than it is on Windows. On these platforms a user can do far more in their own domain without needing system-wide permissions. You will probably still want root or sudo access for developers, bu...
Why should text files end with a newline?
... hard advantage to this guideline when working on a terminal emulator: All Unix tools expect this convention and work with it. For instance, when concatenating files with cat, a file terminated by newline will have a different effect than one without:
$ more a.txt
foo
$ more b.txt
bar$ more c.txt
b...
Are table names in MySQL case sensitive?
...are not case sensitive in Windows, and case sensitive in most varieties of Unix.
In MySQL, databases correspond to directories within the data
directory. Each table within a database corresponds to at least one
file within the database directory. Consequently, the case sensitivity of the
u...
What does -D_XOPEN_SOURCE do/mean?
...s.
This will give you some extra functionality that exists on most recent UNIX/BSD/Linux systems, but probably doesn't exist on other systems such as Windows.
The numbers refer to different versions of the standard.
500 - X/Open 5, incorporating POSIX 1995
600 - X/Open 6, incorporating POSIX 200...