如何在 shell 中搜索包含方括号和其他特殊字符的模式

Question

我正在尝试在 "output2" 文件中执行以下模式搜索，但它没有提供所需的输出，即使 grep 命令的状态显示成功。

➜  automate git:(master) ✗ grep -F "@PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")" output2
➜  automate git:(master) ✗ grep -nF "@PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")" output2
➜  automate git:(master) ✗ echo $?
0
➜  automate git:(master) ✗

以下 output2 文件的内容：

/home/workspace/OutputWithMessages.txt:1549:+ @PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")
/home/workspace/OutputWithMessages.txt:3254:+ @PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")
/home/workspace/OutputWithMessages.txt:4558:+ @PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")
/home/workspace/OutputWithMessages.txt:5438:+ @PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")
/home/workspace/OutputWithMessages.txt:5744:+ @PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")
/home/workspace/OutputWithMessages.txt:6986:+ @PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")
/home/workspace/OutputWithMessages.txt:7344:+ @PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus,

Answer 1

字符串需要正确引用：

$ grep -F '@PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, '\''MAX_LOAN_AMOUNT_FOR_APPROVE'\'')")' output2
/home/workspace/OutputWithMessages.txt:1549:+ @PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")
/home/workspace/OutputWithMessages.txt:3254:+ @PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")
/home/workspace/OutputWithMessages.txt:4558:+ @PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")
/home/workspace/OutputWithMessages.txt:5438:+ @PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")
/home/workspace/OutputWithMessages.txt:5744:+ @PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")
/home/workspace/OutputWithMessages.txt:6986:+ @PreAuthorize("isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')")

shell 将单引号字符串内的所有字符视为文字字符除了用于单引号。要输入单引号作为字符串的一部分，请使用 '\''.

'\'' 分三步工作：首先用 ' 终止单引号字符串，然后用 \' 添加转义单引号，最后开始一个新的带有 '.

的单引号字符串

Answer 2

我把 " 换成 \" 就解决了问题。

grep -F "@PreAuthorize(\"isFullyAuthenticated() and hasPermission(#updateStatus, 'MAX_LOAN_AMOUNT_FOR_APPROVE')\")" output2

如何在 shell 中搜索包含方括号和其他特殊字符的模式

How to search for pattern containing brackets and other special characters in shell

unix

bash

shell

scripting

grep