ref: 57446af9a447c3a81414131f2407a9ca6f6a1a94
dir: /man/1/time/
.TH TIME 1 .SH NAME time \- time command execution .SH SYNOPSIS .B time .I command [ .I arg ... ] .SH DESCRIPTION .I Time executes the .I command with the given arguments, and reports on standard error the command's load time, real time for execution, and the total, in seconds. The load time is just the time for .I time itself to load .IR command ; loads done later by the command are included in the real time. To time a pipeline, use the .B -c option to .IR sh (1): .IP .B "time sh -c 'ps | grep Sh'" .SH SOURCE .B /appl/cmd/time.b .SH "SEE ALSO" .IR sh (1), .IR sys-millisec (2) .SH BUGS There is no way to measure CPU time (real or virtual) used by a command.