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  1. I wish to pass long and short CLI options. I have tried below for short options:

    #!/bin/bash
while getopts d:t:r: option 
do
 case "${option}"
 in
 d) c_date=${OPTARG};;
 t) c_type=${OPTARG};;
 r) c_date_range=${OPTARG};;
 esac
done
shift $((OPTIND -1))

echo "Date:"$c_date
echo "Type:"$c_type
echo "Range:"$c_date_range

How can I accept long options like --date, --type, --range?

  1. The range option accepts 2 dates i.e. -r 2019-01-01 2019-02-01 or --range 2019-01-01 2019-02-01. How can I accept these dates and save in separate variables?
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  • Look into getopt --longoptions - it will give you building block for parsing long options. Look at: https://stackoverflow.com/questions/402377/using-getopts-to-process-long-and-short-command-line-options – dash-o Oct 07 '19 at 18:37
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    Unfortunately, there is no support for 'getlong' to take 2 values (as per the range). Common alternative are (1) have two flags ('--from date --to date). (2) combine the two date into single parameter (2019-01-01:2019-02-01), and decode the range or (3) modify the case for 'r' to pick the next argument (explicitly move OPTIND). not easy, but possible – dash-o Oct 07 '19 at 18:41

0 Answers0