我无法形成一个grep正则表达式,它只会找到那些以+符号结尾的行.例:
应该匹配 - This is a sample line +
This is a sample line +
不应该匹配 - This is another with + in between或This is another with + in between and ends with +
This is another with + in between
This is another with + in between and ends with +