Filters (Linux)


One kind of program frequently used in pipelines is called filters. Filters take standard input and perform an operation upon it and send the results to standard output. In this way, they can be combined to process information in powerful ways.

List of Unix filter programs

Blue indicates I have blogged about these :



[1]  Commands like  cp and echo are not filters. They disregard the standard input stream and rely solely on the arguments found after the command

[2] Also, in some cases arbitrarily long lists of parameters cannot be passed to a command. In that case one has to use xargs.


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