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How to sort an array in Bash
... whitespace in elements (as long as it's not a newline), and works in Bash 3.x.
e.g.:
$ array=("a c" b f "3 5")
$ IFS=$'\n' sorted=($(sort <<<"${array[*]}")); unset IFS
$ printf "[%s]\n" "${sorted[@]}"
[3 5]
[a c]
[b]
[f]
Note: @sorontar has pointed out that care is required if elements...
How do I check if there are duplicates in a flat list?
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answered Oct 9 '09 at 4:38
Denis OtkidachDenis Otkidach
27k88 gold badges7070 silver badges9090 bronze badges
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Github (SSH) via public WIFI, port 22 blocked
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375
Try this:
$ vim ~/.ssh/config
Add
Host github.com
Hostname ssh.github.com
Port 443
S...
Breaking loop when “warnings()” appear in R
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3 Answers
3
Active
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How to get the list of all printers in computer
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Arvo Bowen
3,46066 gold badges3636 silver badges7272 bronze badges
answered Mar 1 '10 at 8:01
Jojo SardezJojo Sa...
$(window).scrollTop() vs. $(document).scrollTop()
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Visual Vincent
17.1k55 gold badges2323 silver badges6464 bronze badges
answered Mar 20 '11 at 20:45
BodmanBodman
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Git flow release branches and tags - with or without “v” prefix
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3 Answers
3
Active
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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table
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143
Yes, it's subassignment in R using <- (or = or ->) that makes a copy of the whole object. ...
Code Golf: Lasers
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Perl, 166 160 characters
Perl, 251 248 246 222 214 208 203 201 193 190 180 176 173 170 166 --> 160 chars.
Solution had 166 strokes when this contest ended, but A. Rex has found a couple ways to shave off 6 more characters:
s!.!$t{$s++}=$&!ge,$s=$r+=99for<>;%d='>....
C/C++中的段错误（Segmentation fault） - C/C++ - 清泛网 - 专注C/C++及内核技术
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1。什么是段错误？
2。为什么段错误这么“麻烦”？
3。编程中通常碰到段错误的地方有哪些？
4。如何发现程序中的段错误并处理掉？
正文
1。什么是段错误？
下面是来自Answers.com的定义：
A segmentation fault...