How to properly do options in a bash script with getopt!.md


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---
tags:
  - bash
---
```
#!/bin/bash

while getopts "ab:c" opt; do
  case "$opt" in
    a)
      echo "Option -a was specified."
      ;;
    b)
      echo "Option -b was specified with argument: $OPTARG"
      ;;
    c)
      echo "Option -c was specified."
      ;;
    \?)
      echo "Invalid option: -$OPTARG" >&2
      exit 1
      ;;
  esac
done

shift $((OPTIND - 1))

echo "Remaining arguments: $@"
```

man bash // getopt

The **colon** after b in getopts indicates that it has an argument.