File.txt : a1 a2 a3 a4 a5 a6 Code : awk '{array[NR]=$0} END {for (i in array) {if (i>1) {{print array[i-1]","array[i]}}}}' File.txt Result : a1,a2 a2,a3 a3,a4 a4,a5 a5,a6 After the all rows are imported to an array, it shows next row to current row under a condition of row > 1.
I made One Liner Code to retrieve data using Netatmo API. There are 2 ways. One is for windows dos. Another is for unix bash. Requirement tools are curl and jq. windows dos > setlocal & curl -s -d "grant_type=password&client_id='#####'&client_secret='#####'&username='#####'&password='#####'&scope=read_station" "https://api.netatmo.net/oauth2/token" | for /f "usebackq tokens=*" %a in (`jq -r ".access_token"`) do @set a="%a" | curl -s -d "access_token=%a&device_id='#####'" "https://api.netatmo.net/api/getstationsdata" > dat.txt & for /f "usebackq tokens=*" %b in (`jq -r ".