Menu
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
830
sed operates by performing the following cycle on each lines of input: first, sed reads one line from the input stream, removes any trailing newline, and places it in the pattern space. Then commands are executed; […]. Add a newline to the pattern space, then append the next line of input to the pattern space.
I find awk much faster than sed . You can speed up grep if you don't need real regular expressions but only simple fixed strings (option -F). If you want to use grep, sed, awk together in pipes, then I would place the grep command first if possible.
Combining the Twoawk and sed are both incredibly powerful when combined. You can do this by using Unix pipes. Those are the "|" bits between commands.
awk '!(NR%2){print$0p}{p=$0}' infile
You can use printf with a ternary:
awk '{printf (NR%2==0) ? $0 "\n" : $0}'
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
