MPE/iX Shell and Utilities Reference Manual, Vol 1

mkfifo(1) MPE/iX Shell and Utilities mkfifo(1)
NAME
mkfifo — create a FIFO special file
SYNOPSIS
mkfifo [–p][–m mode] file ...
DESCRIPTION
mkfifo creates one or more FIFO special file with the given names.
Options
mkfifo accepts the following options:
–m mode
lets you specify file permissions for the files. The mode argument may have the same
value as the mode for chmod; see chmod(1) for more details.
–p creates intermediate directory components that don’t already exist. For example, if
one of the file arguments is dir/subdir/file and subdir doesn’t exist already,
this option creates it. Directories are created with the mode u+wx, which means
read, write, and search permissions to the owner.
DIAGNOSTICS
Possible exit status values are:
0 Successful completion.
1 An error occurred.
Messages
Message: fifo file "filename": system error
Cause: See syserror(3).
Action: See syserror(3).
Message: Insufficient memory
Cause: There were not enough free system resources to perform the specified operation.
Action: Free up more resources.
Message: Missing mode after -m
Cause: You specified the –m option without providing the mode argument.
Action: Provide the missing mode.
1-374 Commands and Utilities