System information

An Introduction to Shells in General
Axis Communications AB provides NO support for application development of any kind. The information
here is provided "as is", and there is no guarantee that any of the examples shown will work in your
particular application.
Revision 1.02 October 2002 54
-u with -l: show access time
-v sort the listing by version
-w NUM assume the terminal is NUM columns wide
-x list entries by lines instead of by columns
-X sort the listing by extension
-h print sizes in human readable format (e.g., 1K 243M 2G )
-k print sizes in kilobytes(default)
5.3.28 mkdir
Syntax: mkdir [OPTION] DIRECTORY...
Create the DIRECTORY(ies), if they do not already exist.
Options:
-m set permission mode (as in chmod), not rwxrwxrwx - umask
-p no error if existing, make parent directories as needed
Example:
$ mkdir /tmp/foo
$ mkdir /tmp/foo
/tmp/foo: File exists
$ mkdir /tmp/foo/bar/baz
/tmp/foo/bar/baz: No such file or directory
$ mkdir -p /tmp/foo/bar/baz
5.3.29 mkfifo
Syntax: mkfifo [OPTIONS] name
Creates a named pipe (identical to 'mknod name p')
Options:
-m create the pipe using the specified mode (default a=rw)
5.3.30 mknod
Syntax: mknod [OPTIONS] NAME TYPE MAJOR MINOR
Create a special file (block, character, or pipe).
Options:
-m create the special file using the specified mode (default a=rw)
TYPEs include:
b: Make a block (buffered) device.
c or u: Make a character (un-buffered) device.
p: Make a named pipe. MAJOR and MINOR are ignored for named pipes.
Example:
$ mknod /dev/fd0b20
$ mknod -m 644 /tmp/pipe p