[SOLVED] Joining two consecutive lines using awk or sed

Issue

How would I join two lines using awk or sed?

I have data that looks like this:

abcd
joinabcd
efgh
joinefgh
ijkl
joinijkl

I need an output like the one below:

joinabcdabcd
joinefghefgh
joinijklijkl

Solution

awk '!(NR%2){print$0p}{p=$0}' infile

Answered By - Dimitre Radoulov

Answer Checked By - Robin (WPSolving Admin)