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从文件中删除行

tag-icon • tag-icon text-processing logs
从文件中删除行

在我的输出文件中，我多次包含以下行以及所需的输出。

WARN: The method class org.apache.commons.logging.impl.SLF4JLogFactory#release() was invoked.
WARN: Please see http://www.slf4j.org/codes.html#release for an explanation.

这是我的输出的样子。

####################################################################
Raw Error: count of the error records with latest trans session in "audit_preatlas_wb4370_raw_error_05012016073248" table
====================================================================
count   trans_session

WARN: The method class org.apache.commons.logging.impl.SLF4JLogFactory#release() was invoked.
WARN: Please see http://www.slf4j.org/codes.html#release for an explanation.
********************************************************************
Raw Audit: Total records available in "audit_preatlas_wb4370_raw_audit_05012016073248" table
====================================================================
count   trans_session

Raw Audit: Distinct records of "audit_preatlas_wb4370_raw_audit_05012016073248" table
====================================================================
count   trans_session

WARN: The method class org.apache.commons.logging.impl.SLF4JLogFactory#release() was invoked.
WARN: Please see http://www.slf4j.org/codes.html#release for an explanation.
Raw Audit : count of duns with error "gbwr_raw_audit_mandatory_field" code in "audit_preatlas_wb4370_raw_audit_05012016073248" table
====================================================================
count   trans_session   error_code

WARN: The method class org.apache.commons.logging.impl.SLF4JLogFactory#release() was invoked.
WARN: Please see http://www.slf4j.org/codes.html#release for an explanation.
Raw Audit : count of duns with error "gbwr_raw_audit_numeric_field" code in "audit_preatlas_wb4370_raw_audit_05012016073248" table
====================================================================
count   trans_session   error_code

WARN: The method class org.apache.commons.logging.impl.SLF4JLogFactory#release() was invoked.
WARN: Please see http://www.slf4j.org/codes.html#release for an explanation.

如何单独删除 WARN 行？

答案1

所以有几种方法。要总结上述评论，您可以执行以下操作之一：

awk：

awk '!/^WARN/' filename

sed：

sed '/^WARN/d' filename

格列普：

grep -v '^WARN' filename

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