bash 需要在 linux shell 命令中转义的字符列表
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List of characters which needs to be escaped in a linux shell command
提问by Arunkumar
In Linux and other OS, file can contain characters like (,),[,],<space>,etc. in their names.
Whenever I try to use any of these files in my bash command like cat, ls, etc. I am required to escape them like below :
在 Linux 和其他操作系统中，文件(,),[,],<space>,的名称中可以包含诸如等字符。每当我尝试在我的 bash 命令中使用任何这些文件时，如 cat、ls 等。我需要像下面这样对它们进行转义：
filename abc(10-oct).txt
cat abc(10-oct).txt wont work.
If I precede "("and ")"characters with "\"character like
如果我在字符之前"("和字符像")""\"
cat abc\(10-oct\).txt
This works
这有效
I am trying to automate some of Linux shell commands via Java program.And I am not sure of what all characters I must take care of and escape them.
我正在尝试通过 Java 程序自动化一些 Linux shell 命令。我不确定我必须处理和转义所有字符。
If someone may point to a resource where I can get an entire list of characters, it would be a great help.
如果有人可以指出我可以获得完整字符列表的资源，那将是一个很大的帮助。
Many Thanks
非常感谢
回答by devnull
Quoting from Shell Command Language:
引用Shell 命令语言：
The following characters must be quoted if they are to represent themselves:
| & ; < > ( ) $ ` \ " ' <space> <tab> <newline>and the following may need to be quoted under certain circumstances. That is, these characters may be special depending on conditions described elsewhere in this specification:
* ? [ # ~ = %The various quoting mechanisms are the escape character, single-quotes and double-quotes.
如果要代表自己，必须引用以下字符：
| & ; < > ( ) $ ` \ " ' <space> <tab> <newline>在某些情况下可能需要引用以下内容。也就是说，这些字符可能是特殊的，具体取决于本规范其他地方描述的条件：
* ? [ # ~ = %各种引用机制是转义字符、单引号和双引号。
It also says:
它还说：
Enclosing characters in single-quotes (' ') preserves the literal value of each character within the single-quotes. A single-quote cannot occur within single-quotes.
将字符括在单引号 (' ') 中会保留单引号内每个字符的字面值。单引号内不能出现单引号。
And:
和：
Enclosing characters in double-quotes (" ") preserves the literal value of all characters within the double-quotes, with the exception of the characters dollar-sign, backquote and backslash...
用双引号 (" ") 括起来的字符会保留双引号内所有字符的字面值，但美元符号、反引号和反斜杠字符除外...
回答by Saddam Abu Ghaida
You can use Single Quote 'filename'which will escape everything needs to be escaped in shell mode
您可以使用单引号'filename'，它将转义所有需要在 shell 模式下转义的内容
