利用命令“chflags hidden” 可以隐藏文件或文件夹。先打开Terminal（Applications/Utilities/Terminal），然后执行命令
chflags hidden 文件路径 或
chflags hidden 文件夹路径
chflags 命令修改文件的标志（change file flags），包括隐藏标志，其详细使用方法如下：
SYNOPSIS chflags [-fhv] [-R [-H | -L | -P]] flags file ... DESCRIPTION The chflags utility modifies the file flags of the listed files as specified by the flags operand. The options are as follows: -f Do not display a diagnostic message if chflags could not modify the flags for file, nor modify the exit status to reflect such failures. -H If the -R option is specified, symbolic links on the command line are followed. (Symbolic links encountered in the tree traversal are not followed.) -h If the file is a symbolic link, change the file flags of the link itself rather than the file to which it points. -L If the -R option is specified, all symbolic links are followed. -P If the -R option is specified, no symbolic links are followed. This is the default. -R Change the file flags for the file hierarchies rooted in the files instead of just the files themselves. -v Cause chflags to be verbose, showing filenames as the flags are modified. If the -v option is specified more than once, the old and new flags of the file will also be printed, in octal notation. The flags are specified as an octal number or a comma separated list of keywords. The following key- words are currently defined: arch, archived set the archived flag (super-user only) opaque set the opaque flag (owner or super-user only). [Directory is opaque when viewed through a union mount] nodump set the nodump flag (owner or super-user only) sappnd, sappend set the system append-only flag (super-user only) schg, schange, simmutable set the system immutable flag (super-user only) uappnd, uappend set the user append-only flag (owner or super-user only) uchg, uchange, uimmutable set the user immutable flag (owner or super-user only) hidden set the hidden flag [Hide item from GUI] As discussed in chflags(2), the sappnd and schg flags may only be unset when the system is in single- user mode. Putting the letters ``no'' before or removing the letters ``no'' from a keyword causes the flag to be cleared. For example: nouchg clear the user immutable flag (owner or super-user only) dump clear the nodump flag (owner or super-user only) Unless the -H or -L options are given, chflags on a symbolic link always succeeds and has no effect. The -H, -L and -P options are ignored unless the -R option is specified. In addition, these options override each other and the command's actions are determined by the last one specified. You can use "ls -lO" to see the flags of existing files.