name of current variable in bash pipe

Question 1

In powershell $_ is the name of the current variable being passed with pipes. What is the equivalent of this in Bash?

Let’s say I want to do this

echo "Hi" | echo "$_"
   prints Hi

1

2

3

echo "Hi" | echo "$_"

prints Hi

Thanks

Question 2

Bash (or any other Unix shell for that matter) has no such thing.

In PowerShell, what is passed through pipes is an object. In bash, this is the output (to stdout) of the command.

The closes thing you can do is use while:

thecmd | while read theline; do something_with "$theline"; done

1 2	thecmd \| while read theline; do something_with "$theline"; done

Note that IFS (Input Field Separator) is used, you can therefore also do:

thecmd | while read first therest; do ...; done

1 2	thecmd \| while read first therest; do ...; done

Question: