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Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Shell脚本编程30分钟入门linux_shell_30min_guides什么是Shell脚本示例看个例子吧:#! bin shcd ~mkdir shell_tutcd shell_tutfor ((i=0; i<10; i++)); do touch test_$i.txt...
什么是Shell脚本
示例
看个例子吧:
#!/bin/sh
cd ~
mkdir shell_tut
cd shell_tut
for (...
A variable modified inside a while loop is not remembered
In the following program, if I set the variable $foo to the value 1 inside the first if statement, it works in the sense that its value is remembered after the if statement. However, when I set the same variable to the value 2 inside an if which is inside a while statement, it's forgotten af...
Entity Framework rollback and remove bad migration
I'm using EF 6.0 for my project in C# with manual migrations and updates. I have about 5 migrations on the database, but I realised that the last migration was bad and I don't want it. I know that I can rollback to a previous migration, but when I add a new (fixed) migration and run Update-Database,...
What are five things you hate about your favorite language? [closed]
There's been a cluster of Perl-hate on Stack Overflow lately, so I thought I'd bring my " Five things you hate about your favorite language " question to Stack Overflow. Take your favorite language and tell me five things you hate about it. Those might be things that just annoy you, admitted design ...
How many parameters are too many? [closed]
... You can define as many parameters as you may need, but too many of them will make your routine difficult to understand and maintain.
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Why would I use a templating engine? jsp include and jstl vs tiles, freemarker, velocity, sitemesh
... about to choose to way to organize my view (with spring-mvc, but that shouldn't matter much)
7 Answers
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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...
...像及恢复删除的数据(FAT文件系统格式描述)Getting-the-File-System-Image-and-Deleted-Data-Recovery大多数的 flash驱动器的文件系统都采用 FAT 格式。下面介绍下这种系统格式, FAT 系统由三个主要部分构成:保留区域、 表 (FAT 区域 ) 和数据...
Does Javascript pass by reference? [duplicate]
Does Javascript pass by references or pass by values? Here is an example from Javascript: The Good Parts . I am very confused about my parameter for the rectangle function. It is actually undefined , and redefined inside the function. There are no original reference. If I remove it from the func...
What is the significance of load factor in HashMap?
HashMap has two important properties: size and load factor . I went through the Java documentation and it says 0.75f is the initial load factor. But I can't find the actual use of it.
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Looping through the content of a file in Bash
How do I iterate through each line of a text file with Bash ?
13 Answers
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