Say I have command1 which outputs this:
假设我有command1输出：
b05808aa-c6ad-4d30-a334-198ff5726f7c
59996d37-9008-4b3b-ab22-340955cb6019
2b41f358-ff6d-418c-a0d3-ac7151c03b78
7ac4995c-ff2c-4717-a2ac-e6870a5670f0
I also have command2 which outputs this:
我也有command2输出这个：
b05808aa-c6ad-4d30-a334-198ff5726f7c
59996d37-9008-4b3b-ab22-340955cb6019
Is there a way to grep the output from command1 to not include any lines matched from command2, so that the final output would look like this?
有没有办法从命令1 grep输出不包括从command2匹配的任何行，以便最终输出看起来像这样？
2b41f358-ff6d-418c-a0d3-ac7151c03b78
7ac4995c-ff2c-4717-a2ac-e6870a5670f0
2 个解决方案
#1
15
Issue this grep
发出这个grep
command1 | grep -vF -f <(command2)
Here,
这里，
-F means Fixed string match*
-F表示固定字符串匹配*
-v means invert match
-v表示反转匹配
-f means the file with patterns
-f表示带有模式的文件
<(command) actually creates a FIFO with that command and use it on redirection.
<（命令）实际上使用该命令创建FIFO并在重定向时使用它。
#2
5
To get all the lines from the output of command1 that do not appear in the output of command2:
要获取command1输出中未出现在command2输出中的所有行：
grep -vFf <(command2) <(command1)
-f tells grep to use patterns that come from a file. In this case, that file is the output of command2. -F tells grep that those patterns are to be treated as fixed strings, not regex. -v tells grep to invert its normal behavior and just show lines the lines that do not match.
-f告诉grep使用来自文件的模式。在这种情况下，该文件是command2的输出。 -F告诉grep这些模式将被视为固定字符串，而不是正则表达式。 -v告诉grep反转它的正常行为，只显示不匹配的行。
#1
15
Issue this grep
发出这个grep
command1 | grep -vF -f <(command2)
Here,
这里，
-F means Fixed string match*
-F表示固定字符串匹配*
-v means invert match
-v表示反转匹配
-f means the file with patterns
-f表示带有模式的文件
<(command) actually creates a FIFO with that command and use it on redirection.
<（命令）实际上使用该命令创建FIFO并在重定向时使用它。
#2
5
To get all the lines from the output of command1 that do not appear in the output of command2:
要获取command1输出中未出现在command2输出中的所有行：
grep -vFf <(command2) <(command1)
-f tells grep to use patterns that come from a file. In this case, that file is the output of command2. -F tells grep that those patterns are to be treated as fixed strings, not regex. -v tells grep to invert its normal behavior and just show lines the lines that do not match.
-f告诉grep使用来自文件的模式。在这种情况下，该文件是command2的输出。 -F告诉grep这些模式将被视为固定字符串，而不是正则表达式。 -v告诉grep反转它的正常行为，只显示不匹配的行。