Filter1. A program that reads data (from a file, program output or command line entry) as input, processes it according to a set of predefined conditions (for example, sorted alphabetically) and outputs the processed data. Some filters include Awk, Grep, Sed and Sort. From I-gloss 2. Any utility program that functions automatically to screen data. In electronic mail, you can use a filter to delete unwanted messages automatically. From QUECID 3. Hardware or software designed to restrict access to certain areas on the Internet. From Glossary of Distance Education and Internet Terminology 4. A program that filters local email via forward/pipe filter is one of the original mailfiltering programs written for UNIX. (originally a part of the 'elm' mailer) Install it via a pipe(|) reference in $HOME/.forward, and let it separate your incoming email into different personal mailboxes. From Debian 3.0r0 APT 5. A program that takes a set of data (usually in a file) as input, processes the data, and makes the processed data its output. Some examples of filters include grep, sort, awk, and sed. From Linux Guide @FirstLinux |
