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UNAME(1) BSD General Commands Manual UNAME(1) NAME uname -- display information about the system SYNOPSIS uname [-aimnprsv] DESCRIPTION The uname command writes the name of the operating system implementation to standard output. When options are specified, strings representing 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 speci- fied. -i Write the kernel ident to standard output. -m Write the type of the current hardware platform to standard out- put. -n Write the name of the system to standard output. -p Write the type of the machine processor architecture to standard output. -r Write the current release level of the operating system to stan- dard 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. DIAGNOSTICS The uname utility exits 0 on success, and >0 if an error occurs. ENVIRONMENT An environment variable composed of the string UNAME_ followed by any flag to the uname utility (except for -a) will allow the corresponding data to be set to the contents of the environment variable. SEE ALSO sysctl(3), uname(3), sysctl(8) HISTORY The uname command appeared in PWB UNIX. STANDARDS The uname command is expected to conform to the IEEE Std 1003.2 ("POSIX.2") specification. BSD April 02, 2003 BSD
NAME | SYNOPSIS | DESCRIPTION | DIAGNOSTICS | ENVIRONMENT | SEE ALSO | HISTORY | STANDARDS
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