bash Unix命令在所有文件中搜索文本字符串
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Unix command to search for text string in all files
提问by MorganR
How do I get unix to search inside ALL files for a the string "hello"?
如何让 unix 在所有文件中搜索字符串“hello”？
I've tried the following but it doesn't work:
我已经尝试了以下但它不起作用：
sudo grep "hello" | find / -name "*" 2>/dev/null
Does anyone have any other ideas?
有没有人有其他想法？
Thank you.
谢谢你。
回答by Ivaylo Strandjev
Maybe this one?
也许是这个？
sudo cd / && grep -rn "hello" *
EDIT: the 'n' option of course is not needed - it simply displays the line numbers and I find it nice. The 'r' option tells grep to perform recursive search within directories.
编辑：当然不需要 'n' 选项 - 它只是显示行号，我觉得很好。'r' 选项告诉 grep 在目录中执行递归搜索。
回答by sorpigal
Use
用
grep -r 'pattern' /
If your grepsupports -r, (GNU grepdoes); if not use
如果您grep支持-r，（GNU支持grep）；如果不使用
find / -type f -exec grep 'pattern' {} +
If your findsupports -execwith +, otherwise use
如果您的find支持-exec与+，否则使用
find / -type f -printf '%pfind / -type f -print0 | xargs -0 grep 'pattern'
' | xargs -0 grep 'pattern'
If your findsupports -printfand your xargssupports -0, or
如果您的find支持-printf和您的xargs支持-0，或
find / -type f | xargs grep 'pattern'
If your findsupports only -print0and your xargssupports -0. In all other cases fall back on
如果您find只支持-print0并且您xargs支持-0. 在所有其他情况下依靠
find . -exec grep -H "hello" {} \;
This is maximally compatible, with the caveat that certain unusual file names will fail to be grepped and crafted file names could pose a security risk.
这是最大程度的兼容，但需要注意的是，某些不寻常的文件名将无法被 grep 并且精心制作的文件名可能会带来安全风险。
Note that you will have to be root in order to be sure of searching all files and that the search will be case-sensitive unless you add -ito grep.
请注意，您必须是 root 用户才能确保搜索所有文件，并且搜索将区分大小写，除非您添加-i到grep.
回答by HighKing
This?
这个？
##代码##