This script filters out lines from a text file based on specified filters.
perl filter.pl --file FILE --filter FILTER [OPTIONS]
The output of the filtered result will be a file with a -filtered appended to its name.
Note: If a line starts with a whitespace, it is treated as a continuation of the previous line.
--file FILE
Required. Input file to filter by.
--filter F1 [--filter F2 --filter F3 ...]
Required. Data to filter out. For multiple filters, specify this option multiple times.
--keep K1 [--keep K2 --keep K3 ...]
Optional. Data to not be filtered out. If a line contains the filtered string and the keep string, the keep string takes precendence and the line won't be filtered out. For multiple keep keywords, specify this option multiple times.
--ignoreheaders
Optional. Number of headers to ignore. If not provided, all rows will be evaluated.
--caseinsensitive
Optional. Do case-insensitive filter.
--help
Optional. Display the help message.
A sample data has been provided under example.csv. Data is randomly generated. Any resemblance to real persons, living or dead, is purely coincidental.