Editing Echo (command) (section)

==Implementations==
The command is available the following shells or at least one shell of a listed operating system:
* [[Unix]] and [[Unix-like]] shells
* [[Windows]]<ref name="windows-commands" />
* [[Multics]]<ref name="multics" />
* [[OS/2]]<ref name="jatomes" />
* [[DOS]]
* [[Technical Systems Consultants|TSC]] [[FLEX (operating system)|FLEX]]<ref name="flexusergroup" />
* [[MetaComCo]] [[TRIPOS]]<ref name="tripos" />
* [[Zilog]] [[Z80-RIO]]<ref name="z80 user guide" />
* [[OS-9]]<ref name="os-9 guru" />
* [[Panos (operating system)|Panos]]<ref name="computinghistory" />
* [[FlexOS]]<ref name="flexos user guide" />
* [[ReactOS]]<ref name="reactos" />
* [[HP Multi-Programming Executive|MPE/iX]]<ref name="teamnaconsulting" />
* [[KolibriOS]]<ref name="kolibrios" />
* [[SymbOS]]
* [[Unified Extensible Firmware Interface|EFI shell]].<ref name="EFI-Shells-and-Scripting" />