Linux Command Directory

The end of the options. Anything after the -- is treated as the command or one of its arguments.

Used with -o to append the output to file instead of overwriting it.

Specify the output format. Overrides any format specified in the TIME environment variable.

Print help message and exit.

Send the output from time to the specified file instead of to standard error. If file exists, it is overwritten.

Use portable output format (POSIX).

Give verbose output, providing all available information.

Print version information and exit.

Number of involuntary context switches because of time slice expiring.

Name and arguments of command being timed.

Average size of unshared data area, in kilobytes.

Elapsed real time, in seconds.

Elapsed real time as hours:minutes:seconds.

Number of major (I/O-requiring) page faults.

Number of filesystem inputs.

Number of signals delivered to the process.

Average total (data+stack+text) memory use, in kilobytes.

Maximum resident set size, in kilobytes.

Number of filesystem outputs.

Average unshared stack size, in kilobytes.

Percent of CPU used.

Number of socket messages received.

Number of minor (recoverable) page faults.

Number of socket messages sent.

Total CPU seconds used by the system on behalf of the process.

Average resident set size, in kilobytes.

Total CPU seconds used directly by the process.

Number of voluntary context switches.

Number of times the process was swapped out of main memory.

Exit status of the command.

Average shared text size, in kilobytes.

System page size, in bytes.