tempfile - create a temporary file in a safe manner
2. SYNOPSIS ▲
tempfile [-d DIR] [-p STRING] [-s STRING] [-m MODE] [-n FILE] [--directory=DIR] [--prefix=STRING] [--suffix=STRING] [--mode=MODE] [--name=FILE] [--help] [--version]
3. DESCRIPTION ▲
tempfile creates a temporary file in a safe manner. It uses
R tempnam (3) to choose the name and opens it with O_RDWR | O_CREAT | O_EXCL. The filename is printed on standard output. See
R tempnam (3) for the actual steps involved in directory selection.
The directory in which to create the file might be searched for in this order (but refer to
R tempnam (3) for authoritative answers):
In case the environment variable
TMPDIR exists and contains the name of an appropriate directory, that is used.
Otherwise, if the --directory argument is specified and appropriate, it is used.
Otherwise, P_tmpdir (as defined in <stdio.h> ) is used when appropriate.
Finally an implementation-defined directory (/tmp) may be used.
4. OPTIONS ▲
- -d, --directory DIR
Place the file in DIR.
- -p, --prefix STRING
Use up to five letters of STRING to generate the name.
- -s, --suffix STRING
Generate the file with STRING as the suffix.
- -m, --mode MODE
Open the file with MODE instead of 0600.
- -n, --name FILE
Use FILE for the name instead of
R tempnam (3) . The options -d, -p, and -s are ignored if this option is given.
Print a usage message on standard output and exit successfully.
Print version information on standard output and exit successfully.
5. RETURN VALUES ▲
An exit status of 0 means the temporary file was created successfully. Any other exit status indicates an error.
6. BUGS ▲
Exclusive creation is not guaranteed when creating files on NFS partitions.
7. EXAMPLE ▲
8. SEE ALSO ▲
R tempnam (3),
R mktemp (1)