1
$ printf '\e[1;31m this is red message'
2
$ printf '\e[1;32m this is green message'
3
$ printf '\e[1;33m this is yellow message'
4
$ printf '\e[1;34m this is blue message'
5
$ printf '\e[1;35m this is purple message'
6
$ printf '\e[1;36m this is light blue message'
7
$ printf '\e[1;37m this is gray message'