mkfifo — Make FIFO Special File

Synopsis

/usr/bin/mkfifo [-m mode] path...

Description

Use the mkfifo command, an interface to the mknod command, when you want to create a new named pipe (FIFO) or special file. The new file has the following characteristics.

  • The file type is specified by the mode parameter.

  • The owner ID of the file is set to the effective user ID of the process.

  • The group ID of the file is set to the group ID of the parent directory if the SetGroupID attribute of the parent directory is set. Otherwise, the group ID of the file is set to the effective group ID of the calling process.

  • Permission and attribute bits are set by the value of the mode parameter. All bits set in the file-mode creation mask of the process are cleared. ...

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