UNAME(1) General Commands Manual UNAME(1)
NAME
uname - display information about the system
SYNOPSIS
uname [-amnrsv]
DESCRIPTION
The uname command writes the name of the operating system implementation to standard output. When options are specified, strings repre-
senting one or more system characteristics are written to standard output.
The options are as follows:
-a Behave as though the options -m, -n, -r , -s, and -v were specified.
-m Write the type of the current hardware platform to standard output.
-n Write the name of the system to standard output.
-r Write the current release level of the operating system to standard output.
-s Write the name of the operating system implementation to standard output.
-v Write the version level of this release of the operating system to standard output.
If the -a flag is specified, or multiple flags are specified, all output is written on a single line, separated by spaces.
The uname utility exits 0 on success, and >0 if an error occurs.
SEE ALSO
sysctl(8), sysctl(3), uname(3)
HISTORY
The uname command appeared in 4.4BSD.
STANDARDS
The command is expected to conform to the IEEE Std1003.2 (``POSIX'') specification.
4th Berkeley Distribution February 4, 1995 UNAME(1)