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 parameter 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)