shell - Substituting command echo with "echo -e" on linux -

i have shell program has content this

!#/bin/bash  echo \\n program 

once run program on platform other linux recognizes special character , gives output as

(newline) program 

when same program runs on linux, echo command needs "-e" option. don't want change each occurrence of echo "echo -e" in file explicitly because start creating issues on other platforms. want conditional compilation

set system="uname -s"  #if ($system == linux) set echo="echo -e" #endif 

but not work because using set or export command, need replace occurrences of echo $echo, don't want do. again setting aliases not solve issue need echo replaced "echo -e" in subshell.

is there other way around can substitute echo "echo -e" linux platform?

using combination of bash_env , function can do:

bash-3.2$ export bash_env=$home/always-source bash-3.2$ cat $home/always-source  echo() {     command echo -e "$@" }  bash-3.2$ cat runme.bash #!/bin/bash  echo "\nhello world $1\n"  if [[ -z $1 ]];     $0 child fi 

and invocation:

bash-3.2$ ./runme.bash   hello world    hello world child 

wrapping in bash test (linux & mac os x):

if [[ $(uname -s) = linux ]] || [[ $(uname -s) = darwin ]];     export bash_env=$home/always-source fi