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How to convert wstring into string?
...is is deprecated (stackoverflow.com/a/42946556/211176). My compiler throws errors when I try to run this code
– adam_0
Feb 14 '18 at 19:53
6
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source command not found in sh shell
I have a script that uses sh shell. I get an error in the line that uses the source command. It seems source is not included in my sh shell.
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Minimal web server using netcat
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From man for nc, -p description: It is an error to use this option in conjunction with the -l option
– sbeliakov
Nov 24 '16 at 14:59
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Print a string as hex bytes?
... the correct format should be {:02x}:
>>> s = "Hello unicode \u0005 !!"
>>> ":".join("{0:x}".format(ord(c)) for c in s)
'48:65:6c:6c:6f:20:75:6e:69:63:6f:64:65:20:5:20:21:21'
^
>>> ":".join("{:02x}".format(ord(c)) for c in s)
'4...
Scala: Abstract types vs generics
... def back(x:B):A
}
The compiler will object with bunch of variance check errors
In that case you may gather all type requirements in additional trait and parametrize other traits over it
//one trait to rule them all
trait OO[O <: OO[O]] { this : O =>
type A <: AA[O]
type B <: BB[...
Node.js spawn child process and get terminal output live
...pt let childProcess = exec ( './script-to-run --arg1 arg1value', ( error, stdout, stderror ) => { console.log( '[CALLBACK]: ' + error ); // or stdout or stderror } ); // Same as with spawn: childProcess.stdout.on ( 'data', ( data ) => { console.log(...
Difference between sh and bash
...to),
#!/bin/bash
will use /bin/bash if it's available (and fail with an error message if it's not). Of course, you can also specify another implementation, e.g.
#!/bin/dash
Which one to use
For my own scripts, I prefer sh for the following reasons:
it is standardized
it is much simpler and ...
get just the integer from wc in bash
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What if I'm piping with with find? I get an error: find . -path -prune -o -name "*.swift" -print0 | xargs -0 wc -l works ok but prints every file. If I use find . -path -prune -o -name "*.swift" -print0 | xargs -0 wc -l < I get an error. parse error near '\n'
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预编译头文件来自编译器的早期版本，或者预编译头为 C++ 而在 C 中使用它(...
...切换为“所有配置”。
在“配置属性”---“连接器”---“常规”的“附件库目录”填上库所在的目录名，这个目录名最好是在工程文件夹中建一个专门放lib的文件夹。
C++ 编译器 版本
预编译头文件来自编译器的早期版本，或者预编译头为 C++ 而在 C 中使用它(...
...sp; 在“配置属性”---“连接器”---“常规”的“附件库目录”填上库所在的目录名，这个目录名最好是在工程文件夹中建一个专门放lib的文件夹。