Awesome
Portable echo shell function
Portable echo shell function for POSIX compliant shells. It works exactly the same in all shells.
Functions
puts - Output as is without interpreting escape sequences and options.putsn - puts with newline.echo - Overwrite built-in echo. Only supported -n option.
Solved the problem
Problem
echo -e "\e[31m RED \e[m"
| Shell | Output | Shell | Output |
|---|
| dash | -e <font color="red">RED</font> | mksh | <font color="red">RED</font> |
| bash | <font color="red">RED</font> | yash | -e \e[31mRED\e[m |
| zsh | <font color="red">RED</font> | posh | -e \e[31mRED\e[m |
| ksh | \e[31mRED\e[m | busybox ash | <font color="red">RED</font> |
Portable echo shell function
echo -e "\e[31m RED \e[m"
| Shell | Output | Shell | Output |
|---|
| dash | -e \e[31m RED \e[m | mksh | -e \e[31m RED \e[m |
| bash | -e \e[31m RED \e[m | yash | -e \e[31m RED \e[m |
| zsh | -e \e[31m RED \e[m | posh | -e \e[31m RED \e[m |
| ksh | -e \e[31m RED \e[m | busybox ash | -e \e[31m RED \e[m |
How to output with color.
ESC=$(printf '\033')
echo "${ESC}[31m RED ${ESC}[m"
| Shell | Output | Shell | Output |
|---|
| dash | <font color="red">RED</font> | mksh | <font color="red">RED</font> |
| bash | <font color="red">RED</font> | yash | <font color="red">RED</font> |
| zsh | <font color="red">RED</font> | posh | <font color="red">RED</font> |
| ksh | <font color="red">RED</font> | busybox ash | <font color="red">RED</font> |