string 没有字符串的grep
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grep without string
提问by Mika H.
I want to find all the lines in my text file containing the string "abc", but not containing the string "def". Can I use the grepcommand to accomplish this task?
我想在我的文本文件中找到包含字符串"abc"但不包含字符串的所有行"def"。我可以使用grep命令来完成这个任务吗？
回答by sampson-chen
Either of the these will do:
这些中的任何一个都可以：
grep -v "def" input_file | grep "abc"
or
或者
grep "abc" input_file | grep -v "def"
The following will also preserve coloring if you only want to see the output on stdout:
如果您只想在 stdout 上查看输出，以下内容也将保留着色：
grep --color=always "abc" input_file | grep -v "def"
The -voption (stands for "invert match") tells grepto ignore the lines with the specified pattern - in this case def.
该-v选项（代表“反转匹配”）告诉grep忽略具有指定模式的行 - 在这种情况下def。
回答by alex
This might do it.
这可能会做到。
fgrep "abc" file | grep -v "def"
