bash 如何grep文件中不区分大小写的字符串？
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How to grep for case insensitive string in a file?
提问by all_techie
I have a file file1which ends with
Success...OR
success...
我有一个file1以Success...OR
结尾
的文件success...
I want to grepfor the word successin a way which is not case sensitive way.
我想以一种不区分大小写的方式来grep表示这个词success。
I have written the following command but it is case sensitive
我已经编写了以下命令，但它区分大小写
cat file1 | grep "success\.\.\."
cat file1 | grep "success\.\.\."
How can i change it so that it returns 0with both Success...OR
success...
我怎样才能改变它，以便它returns 0与两个Success...或
success...
回答by Imran
You can use the -iflag which makes your pattern case insensitive:
您可以使用-i使您的模式不区分大小写的标志：
grep -iF "success..." file1
Also, there is no need for cat. greptakes a file with the syntax grep <pattern> <file>. I also used the -Fflag to search for a fixed string to avoid escaping the ellipsis.
此外，也不需要cat. grep使用语法为grep <pattern> <file>. 我还使用该-F标志来搜索固定字符串以避免转义省略号。
回答by Daljit Sinz
For me SQL=echo $line | grep -iF "SQL";
IT works perfect
对我来说 SQL= echo $line | grep -iF "SQL"; IT 工作完美
