Issue
Let's say that I have a string 5a.
This is the hex representation of the ASCII letter Z.
I need to find a Linux shell command which will take a hex string and output the ASCII characters that the hex string represents.
So if I do:
echo 5a | command_im_looking_for
I will see a solitary letter Z:
Z
Solution
echo -n 5a | perl -pe 's/([0-9a-f]{2})/chr hex $1/gie'
Note that this won't skip non-hex characters. If you want just the hex (no whitespace from the original string etc):
echo 5a | perl -ne 's/([0-9a-f]{2})/print chr hex $1/gie'
Also, zsh and bash support this natively in echo:
echo -e '\x5a'
Answered By - bdonlan Answer Checked By - Candace Johnson (WPSolving Volunteer)
