You can use wildcards with any command that accepts filename arguments.
你可以在所有使用文件名作为参数的命令中使用通配符。
2
Opens a file whose name appears on the command line.
打开其名称显示在命令行上的文件。
3
As shown in Listing 8, using the cat command without a filename simply echoes anything typed to standard input; the > redirection captures that to the specified file.