how to check linux version on bash code example

find by number an array in an javascript code example mongodb chown data db code example html basic page design code example laravel artisan generate key code example check if entry exists laravel eloquent code example terraform parts of resource optional code example make a variable a float js code example select array into json postgresql code example check is string is number code example js style to element code example py scheduler code example how to check what is remote origin git code example