man > qsgrep(1)

QSGREP(1)                                  qsgrep man page                                 QSGREP(1)

NAME
       qsgrep - prints matching patterns within a file.

SYNOPSIS
       qsgrep -e <pattern> -o <sub string> [<path>]

DESCRIPTION
       qsgrep  is a simple tool to search patterns within files. It uses regular expressions to find
       patterns and prints the submatches within a pre-defined format string.

OPTIONS
       -e <pattern>
              Specifies the search pattern.

       -o <string>
              Defines the output string where $0-$9 are substituted by the submatches of the regular
              expression.

       <path> Defines the input file to process. qsgrep reads from from standard input if this para‐
              meter is omitted.


EXAMPLE
       Shows the IP addresses of clients causing mod_qos(031) messages):

         qsgrep -e 'mod_qos\(031\).*, c=([a-zA-Z0-9:.]*)' -o 'ip=$1' error_log


SEE ALSO
       qsdt(1), qsexec(1),  qsfilter2(1),  qsgeo(1),  qshead(1),  qslog(1),  qslogger(1),  qspng(1),
       qsre(1), qsrespeed(1), qsrotate(1), qssign(1), qstail(1)

AUTHOR
       Pascal Buchbinder, http://mod-qos.sourceforge.net/

mod_qos utilities 11.74                       May 2023                                     QSGREP(1)