The environment variables obtained by splicing in linux are not parsed

Asked Feb 26 '23 at 13:03

Active Feb 26 '23 at 13:03

Viewed 14 times

As we all know, we can use $HOME to print the current directory just like:

$ echo $HOME

And it will print: /home/tsingshui

But if I use:

$ __="$""H""O""M""E";echo ${__}

It just print:

$HOME

Is there any way to make it continue parsing out the current directory without using numbers or letters?

asked Feb 26 '23 at 13:03

tsingshui

There are ways, for example `eval echo ${__}` but it is not recommended to do such things. – n. m. could be an AI Feb 26 '23 at 13:32
Can a similar function be achieved without using letters or numbers? – tsingshui Feb 27 '23 at 02:56
Is this some kind of coding puzzle? – n. m. could be an AI Feb 27 '23 at 06:05

0 Answers0