sed# 12 Feb 2017
sed is a cool tool for text manipulation.
a b c
cat test.txt | sed -e 's/a/blah/g'
blah b c
edit in place
The following will edit a file in-place using the
sed -i -e 's/a/blah/g' test.txt
delete everything after a colon and replace with a comma on every line:
delete any line containing an equal sign: