sed – stread editor
sed is a mighty tool for editing streams. sed stands for (s)tream (ed)itor.Lets show some examples to get familiar with sed. Lets use the following file (my.txt) for our next examples: Max Müller 1985 Jana Keller 1964 Paul Fröhlich 1993 Peter Keller 1985 Pia Stein 1972 First we want to delete all lines containing the word „Keller“ sed ‚/Keller/d‘ my.txt The sed expression is given as a string and wrapped between slashes. NOtice the d at the end of the…