time(1) General Commands Manual time(1) time - time [option ...] command [argument ...] time . , time . (1) , (2) ( tms_utime tms_cutime struct tms, times(2)) (3) ( tms_stime tms_cstime struct tms, times(2)). : (, bash(1)) time, , , . (, /usr/bin/time). -p POSIX "real %f\nuser %f\nsys %f\n" ( ), %f , , , . , (exit status). 27, , 126 -- , , (1-125), - . LANG, LC_ALL, LC_CTYPE, LC_MESSAGES, LC_NUMERIC NLSPATH . PATH . GNU GNU time 1.7. , GNU , , , , / IPC ( ). , -f TIME. : %Uuser %Ssystem %Eelapsed %PCPU (%Xtext+%Ddata %Mmax)k %Iinputs+%Ooutputs (%Fmajor+%Rminor)pagefaults %Wswaps -p, : real %e user %U sys %S printf. , , \t, \n \\, %% , , % . time . . , tcsh(1). %E ( [:]:). %e ( tcsh(1).) ( ). %S , . %U , . %P , , (%U + %S) / %E. %M . %t ( tcsh(1).) . %K (++) . %D . %p ( tcsh(1).) . %X . %Z ( tcsh(1).) . , . %F , . , . %R . , , . , , . %W , . %c , ( ). %w : , , /. / %I . %O . %r , . %s , . %k , . %C ( tcsh(1).) . %x ( tcsh(1).) . GNU -f , --format= , , TIME. -p, --portability . -o , --output= stderr, . -a, --append ( -o.) , . -v, --verbose . -q, --quiet ( ) . GNU --help . -V, --version . -- . UNIX, . , , , 4.2 4.3BSD. GNU time 1.7 . , POSIX. TIME . , autoconf(1) make(1), . MORE TIME ( ) . , -o . ( -a .) GNU time bug-time@gnu.org. time, , time --version C, . bash(1), tcsh(1), times(2), wait3(2) Azamat Hackimov , Dmitry Bolkhovskikh , Yuri Kozlov , ; GNU (GNU General Public License - GPL, 3 ) , - . - , , <>. Linux man-pages 6.8 2 2024 . time(1)