Trying to follow the script Bob Moss has on pg 48-51. Just a beginner so please have patience. When I get to point
var=$1
echo $var
and then type
sh script_tutorial.sh ''Hello,World\!''
I must assume that the quotes here are two single quotes at the beginning of the Hello,World string and at the end of the line. If I try double quotes here I get
Hello,World\!
and on the next step, sending the value of the argument ($1) to the file sample.txt results in a blank file.
It does work with two single quotes, though. Is this correct? Why is it necessary to escape the ! question mark
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