从脚本运行终端并用变量替换命令

Question

Can anyone tell me how can this be accomplished ?

COMMAND=TEST 
xterm -hold -e 'echo $COMMAND'

Using this example, I expect "TEST", but I get nothing.

Answer 1

Is this what you want to achieve?

It pops the xterm window with the output of TEST

variable="TEST"
COMMAND="echo $variable"
xterm -hold -e $COMMAND

In your code variable is not expanded due to single quotes:

'echo $COMMAND'