How do I the extract the first digit from a number (variable in a bash script)? – unix.stackexchange.com

How do I the extract the first digit from a number (variable in a bash script)? – unix.stackexchange.com

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Let's say the variable numbers=$@ where $@is from user input. The user typed in ./script.sh 901.32.02 and I want to get the first digit 9 and store in another variable. How can I do this? I was told ...

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