sh 用于从文件中提取电子邮件的命令行实用程序。用法sh extractemail.sh yourfile.csv

Posted 2021-05-07

#!/usr/bin/env bash
  if [ -f "$1" ]; then
    grep -E -o "\b[a-zA-Z0-9.-._]+@[a-zA-Z0-9.-]+\.[a-zA-Z0-9.-]+\b" "$1" | uniq -i > "$1.txt"
  else
    echo "Expected a file at $1, but it doesn't exist." >&2
    exit 1
  fi