10 REM>GSEcho
   20 A$=FN_OS_GetEnv:DIMbl%LENA$+1:SYS"OS_GSTrans",A$,bl%,LENA$+1TO,bl%,ln%:SYS"OS_WriteN",bl%,ln%:QUIT
   30 DEFFN_OS_GetEnv:SYS"OS_GetEnv"TOA$:A$=MID$(A$,INSTR(A$," ",1+INSTR(A$," ",1+INSTR(A$," ")))):WHILELEFT$(A$,1)=" ":A$=MID$(A$,2):ENDWHILE:=A$