Unless you specify a different field separator, fields are delimited by blanks or tabs. 除非您指定了一个不同的字段分隔符,否则将使用空格或制表符分隔字段。
Invalid field separator for a sort operation. 对排序操作无效的域分隔符。
Note that-F is the input field separator defined by the predefined variable FS. 注意-F是由预先定义的FS变量所定义的输入域分隔符。
A delimiter, a character that separates units of data in storage or transmission, ( a file separator, a field separator ). 一种定界符,即在存储和传输中分隔数据单元的一种字符(文件分隔符、字段分隔符)。
The difference between these two methods has to do with how we set the field separator. 两种方法的区别在于如何设置字段分隔符。