Author: fernape (ports committer) Date: Tue Jul 7 16:07:39 2020 New Revision: 362992 URL: https://svnweb.freebsd.org/changeset/base/362992
Log: time(1): Add EXAMPLES section Add EXAMPLES showing all five flags: -a, -h, -l, -o, -p Approved by: manpages (bcr) Modified: head/usr.bin/time/time.1 Modified: head/usr.bin/time/time.1 ============================================================================== --- head/usr.bin/time/time.1 Tue Jul 7 13:51:16 2020 (r362991) +++ head/usr.bin/time/time.1 Tue Jul 7 16:07:39 2020 (r362992) @@ -28,7 +28,7 @@ .\" @(#)time.1 8.1 (Berkeley) 6/6/93 .\" $FreeBSD$ .\" -.Dd May 14, 2006 +.Dd July 7, 2020 .Dt TIME 1 .Os .Sh NAME @@ -129,6 +129,62 @@ If .Nm encounters any other error, the exit status is between 1 and 125 included. +.Sh EXAMPLES +Time the execution of +.Xr ls 1 +on an empty directory: +.Bd -literal -offset indent +$ /usr/bin/time ls + 0.00 real 0.00 user 0.00 sys +.Ed +.Pp +Time the execution of the +.Xr cp 1 +command and store the result in the +.Pa times.txt +file. +Then execute the command again to make a new copy and add the result to the same +file: +.Bd -literal -offset indent +$ /usr/bin/time -o times.txt cp FreeBSD-12.1-RELEASE-amd64-bootonly.iso copy1.iso +$ /usr/bin/time -a -o times.txt cp FreeBSD-12.1-RELEASE-amd64-bootonly.iso copy2.iso +.Ed +.Pp +The +.Pa times.txt +file will contain the times of both commands: +.Bd -literal -offset indent +$ cat times.txt + 0.68 real 0.00 user 0.22 sys + 0.67 real 0.00 user 0.21 sys +.Ed +.Pp +Time the +.Xr sleep 1 +command and show the results in a human friendly format. +Show the contents of the +.Em rusage +structure too: +.Bd -literal -offset indent +$ /usr/bin/time -l -h -p sleep 5 +real 5.01 +user 0.00 +sys 0.00 + 0 maximum resident set size + 0 average shared memory size + 0 average unshared data size + 0 average unshared stack size + 80 page reclaims + 0 page faults + 0 swaps + 1 block input operations + 0 block output operations + 0 messages sent + 0 messages received + 0 signals received + 3 voluntary context switches + 0 involuntary context switches +.Ed .Sh SEE ALSO .Xr builtin 1 , .Xr csh 1 , _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
