https://manomano.zoom.us/j/97476587549?pwd=Q3JCL0lBNktlTk9wTytzNzE1WTNadz09 code example

Example: https://manomano.zoom.us/j/97476587549?pwd=Q3JCL0lBNktlTk9wTytzNzE1WTNadz09

$ myVar=$(</dev/stdin)
hello
this is test
$ echo $myVar
hello this is test
$ echo "$myVar"
hello
this is test