How to use Sed to replace all characters in between colons How to replace all characters between colons using `sed`? # replace easy with 123 sed:easy:abc -> sed:123:abc # replace hardest with 123 sed:hardest:efg -> sed:123:efg # replace magnificent with zyx sed:magnificent:zyx -> sed:123:zyx

Try:


$ sed -e 's/:[^:]*:/:123:/' file
sed:123:abc
sed:123:efg
sed:123:zyx