FilterLines

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A flexible grep-like tool.

Examples:

cat foo.txt | Filterlines "bla"

shows all lines from foo.txt that contain the regexp bla

cat foo.txt | Filterlines "bla" "goob"

shows all lines from foo.txt that contain the regexp bla OR the regexp goob

cat foo.txt | Filterlines "bla" "goob" -n "mac"

shows all lines from foo.txt that contain the regexp bla OR the regexp goob but NOT the regexp mac

cat foo.txt | Filterlines "bla" "goob" -n "mac" "ops"

shows all lines from foo.txt that contain the regexp bla OR the regexp goob but NEITHER mac OR ops

cat foo.txt | Filterlines "bla" -n "goob" "mac" "ops"

shows all lines from foo.txt that contain the regexp bla and don’t contain goob, mac or ops

cat foo.txt | Filterlines -n "bla" "goob" "mac" "ops"

shows all lines from foo.txt that don’t contain bla, goob, mac or ops