Question

我有一个带有以下文字的文件

^ [[8mha：AAAAYB + LCAAAAAAAAP9b85aBtbiIQSmjNKU4P0 + vJLE4u1gvPjexLDVPzxdEuhYV5Rf55ZekOlc7RKnPKH7IxMBQUcQgBdWQnJ9XnJ + TqucMoUEKGSCAEaSwAACsNFCqYAAAAA == ^ [[0米[ERROR] ^ [[8mha：AAAAYB + LCAAAAAAAAP9b85aBtbiIQSmjNKU4P0 + vJLE4u1gvPjexLDVPzxdEuhYV5Rf55ZekOlc7RKnPKH7IxMBQUcQgBdWQnJ9XnJ + TqucMoUEKGSCAEaSwAACsNFCqYAAAAA == ^ [[0米[ERROR] /选择/应用程序/ ElectronicTransactionVOtoDOMapper.java:[1060,1]错误：文件的到达端而解析^ [[8mha：AAAAYB + LCAAAAAAAAP9b85aBtbiIQSmjNKU4P0 + vJLE4u1gvPjexLDVPzxdEuhYV5Rf55ZekOlc7RKnPKH7IxMBQUcQgBdWQnJ9XnJ + TqucMoUEKGSCAEaSwAACsNFCqYAAAAA == ^ [[0米[ERROR] - ＆GT; [说明1] ^ [[8mha：AAAAYB + LCAAAAAAAAP9b85aBtbiIQSmjNKU4P0 + vJLE4u1gvPjexLDVPzxdEuhYV5Rf55ZekOlc7RKnPKH7IxMBQUcQgBdWQnJ9XnJ + TqucMoUEKGSCAEaSwAACsNFCqYAAAAA == ^ [[0米[ERROR] ^ [[8mha：AAAAYB + LCAAAAAAAAP9b85aBtbiIQSmjNKU4P0 + vJLE4u1gvPjexLDVPzxdEuhYV5Rf55ZekOlc7RKnPKH7IxMBQUcQgBdWQnJ9XnJ + TqucMoUEKGSCAEaSwAACsNFCqYAAAAA == ^ [[0米[ERROR]要看到完整的堆栈错误的痕迹，用-e开关重新运行Maven

从上面的日志中，我只需要提取以下内容：

[ERROR]
[ERROR] /opt/app/ElectronicTransactionVOtoDOMapper.java:[1060,1] error: reached end of file while parsing
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch

最终，我不应该在日志中获取垃圾值，而是需要一条明确的错误消息。

你能帮助我在shell中获得正确的命令吗？

Answer 1

可能应该在这里使用sed而不是grep。

sed -n '/ERROR/s/.*\(\[ERROR\].*\)$/\1/p' log_10-29-2016_04_12

只获取包含单词'ERROR'的行，并从'[ERROR]'的左边开始删除所有内容并打印其余部分。

Answer 2

awk -vRS='^' -F "] " '/ERROR/{print "[ERROR] "$2}' file

Answer 3

尝试使用以下grep命令来实现输出 -

vipin@kali:~$ grep "\[ERROR\]" kk.txt |cut -c6-
[ERROR]
[ERROR] /opt/app/ElectronicTransactionVOtoDOMapper.java:[1060,1] error: reached end of file while parsing
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch

解释： \[ and \]用于转义，-c6-在第6个字符后打印到行尾。

Shell中的Grep从特定字符串

3 个答案: