Eliminar líneas de un archivo

Eliminar líneas de un archivo

En mi archivo de salida tengo las siguientes líneas incluidas varias veces junto con el resultado requerido.

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.

Así es como se ve mi salida.

####################################################################
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.

¿Cómo puedo eliminar las líneas WARN solas?

Respuesta1

Entonces hay algunas maneras. Para resumir los comentarios anteriores, puede hacer una de las siguientes cosas:

mal:

awk '!/^WARN/' filename

sed:

sed '/^WARN/d' filename

grupo:

grep -v '^WARN' filename

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