$ whatis time

time (7) - overview of time and timers

time (1) - run programs and summarize system resource usage

time (3am) - time functions for gawk

time (2) - get time in seconds

Examples:

  1. Use: screen [-opts] [cmd [args]] or: screen -r [host.tty]
  2. Options:
  3. -4 Resolve hostnames only to IPv4 addresses.
  4. -6 Resolve hostnames only to IPv6 addresses.
  5. -a Force all capabilities into each window's termcap.
  6. -A -[r|R] Adapt all windows to the new display width & height.
  7. -c file Read configuration file instead of '.screenrc'.
  8. -d (-r) Detach the elsewhere running screen (and reattach here).
  9. -dmS name Start as daemon: Screen session in detached mode.
  10. -D (-r) Detach and logout remote (and reattach here).
  11. -D -RR Do whatever is needed to get a screen session.
  12. -e xy Change command characters.
  13. -f Flow control on, -fn = off, -fa = auto.
  14. -h lines Set the size of the scrollback history buffer.
  15. -i Interrupt output sooner when flow control is on.
  16. -l Login mode on (update /var/run/utmp), -ln = off.
  17. -ls [match] or
  18. -list Do nothing, just list our SockDir [on possible matches].
  19. -L Turn on output logging.
  20. -Logfile file Set logfile name.
  21. -m ignore $STY variable, do create a new screen session.
  22. -O Choose optimal output rather than exact vt100 emulation.
  23. -p window Preselect the named window if it exists.
  24. -q Quiet startup. Exits with non-zero return code if unsuccessful.
  25. -Q Commands will send the response to the stdout of the querying process.
  26. -r [session] Reattach to a detached screen process.
  27. -R Reattach if possible, otherwise start a new session.
  28. -s shell Shell to execute rather than $SHELL.
  29. -S sockname Name this session .sockname instead of ...
  30. -t title Set title. (window's name).
  31. -T term Use term as $TERM for windows, rather than "screen".
  32. -U Tell screen to use UTF-8 encoding.
  33. -v Print "Screen version 4.06.02 (GNU) 23-Oct-17".
  34. -wipe [match] Do nothing, just clean up SockDir [on possible matches].
  35. -x Attach to a not detached screen. (Multi display mode).
  36. -X Execute as a screen command in the specified session.
  37. byobu (1) - wrapper script for seeding a user's byobu configuration and launching a text based window manager ...
  38. byobu-screen (1) - Launch byobu with screen as the backend
  39. clear (1) - clear the terminal screen
  40. figlet (6) - display large characters made up of ordinary screen characters
  41. figlet-figlet (6) - display large characters made up of ordinary screen characters
  42. mapscrn (8) - load screen output mapping table
  43. scr_dump (5) - format of curses screen-dumps.
  44. screen (1) - screen manager with VT100/ANSI terminal emulation
  45. screendump (1) - dump the contents of a virtual console to stdout
  46. setfont (8) - load EGA/VGA console screen font
  47. setvesablank (8) - Turn VESA screen blanking on or off
  48. showconsolefont (8) - Show the current EGA/VGA console screen font
  49. vcstime (8) - Show time in upper right hand corner of the console screen
  50. watch (1) - execute a program periodically, showing output fullscreen
  51. xdg-screensaver (1) - command line tool for controlling the screensaver
  52. xrefresh (1) - refresh all or part of an X screen
  53. __ppc_get_timebase (3) - get the current value of the Time Base Register on Power architecture and its frequency.
  54. __ppc_get_timebase_freq (3) - get the current value of the Time Base Register on Power architecture and its frequency.
  55. a2query (1) - retrieve runtime configuration from a local Apache 2 HTTP server
  56. adjtime (3) - correct the time to synchronize the system clock
  57. adjtimex (2) - tune kernel clock
  58. aio_suspend (3) - wait for asynchronous I/O operation or timeout
  59. annotate-output (1) - annotate program output with time and stream
  60. asctime (3) - transform date and time to broken-down time or ASCII
  61. asctime_r (3) - transform date and time to broken-down time or ASCII
  62. bootparam (7) - introduction to boot time parameters of the Linux kernel
  63. chrt (1) - manipulate the real-time attributes of a process
  64. Class::XSAccessor (3pm) - Generate fast XS accessors without runtime compilation
  65. Class::XSAccessor::Array (3pm) - Generate fast XS accessors without runtime compilation
  66. clock (3) - determine processor time
  67. clock_getcpuclockid (3) - obtain ID of a process CPU-time clock
  68. clock_getres (2) - clock and time functions
  69. clock_getres (3) - clock and time functions
  70. clock_gettime (2) - clock and time functions
  71. clock_gettime (3) - clock and time functions
  72. clock_settime (2) - clock and time functions
  73. clock_settime (3) - clock and time functions
  74. ctime (3) - transform date and time to broken-down time or ASCII
  75. ctime_r (3) - transform date and time to broken-down time or ASCII
  76. date (1) - print or set the system date and time
  77. Date::Parse (3pm) - Parse date strings into time values
  78. daylight (3) - initialize time conversion information
  79. difftime (3) - calculate time difference
  80. docker-events (1) - Get real time events from the server
  81. docker-system-events (1) - Get real time events from the server
  82. unimplemented (2) - unimplemented system calls
  83. ftime (3) - return date and time
  84. utimensat (2) - change file timestamps with nanosecond precision
  85. futimens (3) - change file timestamps with nanosecond precision
  86. futimes (3) - change file timestamps
  87. futimesat (2) - change timestamps of a file relative to a directory file descriptor
  88. getdate (3) - convert a date-plus-time string to broken-down time
  89. getdate_err (3) - convert a date-plus-time string to broken-down time
  90. getdate_r (3) - convert a date-plus-time string to broken-down time
  91. getitimer (2) - get or set value of an interval timer
  92. gettimeofday (2) - get / set time
  93. gmtime (3) - transform date and time to broken-down time or ASCII
  94. gmtime_r (3) - transform date and time to broken-down time or ASCII
  95. hwclock (8) - time clocks utility
  96. IPC::Run::Timer (3pm) - - Timer channels for IPC::Run.
  97. kbdrate (8) - reset the keyboard repeat rate and delay time
  98. keep-one-running (1) - run just one instance at a time of some command and unique set of arguments (useful for cronjobs, eg)
  99. ldconfig (8) - configure dynamic linker run-time bindings
  100. localtime (3) - transform date and time to broken-down time or ASCII
  101. localtime (5) - Local timezone configuration file
  102. localtime_r (3) - transform date and time to broken-down time or ASCII
  103. lutimes (3) - change file timestamps
  104. mktime (3) - transform date and time to broken-down time or ASCII
  105. Module::Runtime (3pm) - runtime module handling
  106. modules (5) - kernel modules to load at boot time
  107. mq_timedreceive (2) - receive a message from a message queue
  108. mq_timedreceive (3) - receive a message from a message queue
  109. mq_timedsend (2) - send a message to a message queue
  110. mq_timedsend (3) - send a message to a message queue
  111. ntp_adjtime (3) - tune kernel clock
  112. ntp_gettime (3) - get time parameters (NTP daemon interface)
  113. ntp_gettimex (3) - get time parameters (NTP daemon interface)
  114. openssl-s_time (1ssl) - SSL/TLS performance timing program
  115. openssl-ts (1ssl) - Time Stamping Authority tool (client/server)
  116. openssl-tsget (1ssl) - Time Stamping HTTP/HTTPS client
  117. pam_time (8) - PAM module for time control access
  118. pam_timestamp (8) - Authenticate using cached successful authentication attempts
  119. pam_timestamp_check (8) - Check to see if the default timestamp is valid
  120. profil (3) - execution time profile
  121. pthread_getcpuclockid (3) - retrieve ID of a thread's CPU time clock
  122. pthread_timedjoin_np (3) - try to join with a terminated thread
  123. pts-subscribe (1) - time-limited subscription to the PTS
  124. pts-unsubscribe (1) - time-limited subscription to the PTS
  125. rt_sigtimedwait (2) - synchronously wait for queued signals
  126. rtc (4) - real-time clock
  127. rtcwake (8) - enter a system sleep state until specified wakeup time
  128. rtime (3) - get time from a remote machine
  129. run-one (1) - run just one instance at a time of some command and unique set of arguments (useful for cronjobs, eg)
  130. run-one-constantly (1) - run just one instance at a time of some command and unique set of arguments (useful for cronjobs...
  131. run-one-until-failure (1) - run just one instance at a time of some command and unique set of arguments (useful for cronj...
  132. run-one-until-success (1) - run just one instance at a time of some command and unique set of arguments (useful for cronj...
  133. run-this-one (1) - run just one instance at a time of some command and unique set of arguments (useful for cronjobs, eg)
  134. runc (8) - Open Container Initiative runtime
  135. s390_runtime_instr (2) - enable/disable s390 CPU run-time instrumentation
  136. s_time (1ssl) - SSL/TLS performance timing program
  137. sem_timedwait (3) - lock a semaphore
  138. semtimedop (2) - System V semaphore operations
  139. setitimer (2) - get or set value of an interval timer
  140. settimeofday (2) - get / set time
  141. sigtimedwait (2) - synchronously wait for queued signals
  142. slabtop (1) - display kernel slab cache information in real time
  143. sleep (1) - delay for a specified amount of time
  144. stime (2) - set time
  145. strftime (3) - format date and time
  146. strptime (3) - convert a string representation of time to a time tm structure
  147. sysconf (3) - get configuration information at run time
  148. sysctl (8) - configure kernel parameters at runtime
  149. systemd-debug-generator (8) - Generator for enabling a runtime debug shell and masking specific units at boot
  150. systemd-run (1) - Run programs in transient scope units, service units, or path-, socket-, or timer-triggered servic...
  151. systemd-timedated (8) - Time and date bus mechanism
  152. systemd-timedated.service (8) - Time and date bus mechanism
  153. systemd-timesyncd (8) - Network Time Synchronization
  154. systemd-timesyncd.service (8) - Network Time Synchronization
  155. systemd-tmpfiles-clean.timer (8) - Creates, deletes and cleans up volatile and temporary files and directories
  156. systemd.time (7) - Time and date specifications
  157. systemd.timer (5) - Timer unit configuration
  158. time (1) - run programs and summarize system resource usage
  159. time (2) - get time in seconds
  160. time (3am) - time functions for gawk
  161. time (7) - overview of time and timers
  162. time.conf (5) - configuration file for the pam_time module
  163. Time::Zone (3pm) - - miscellaneous timezone manipulations routines
  164. timedatectl (1) - Control the system time and date
  165. timegm (3) - inverses of gmtime and localtime
  166. timelocal (3) - inverses of gmtime and localtime
  167. timeout (1) - run a command with a time limit
  168. timer_create (2) - create a POSIX per-process timer
  169. timer_delete (2) - delete a POSIX per-process timer
  170. timer_getoverrun (2) - get overrun count for a POSIX per-process timer
  171. timer_gettime (2) - arm/disarm and fetch state of POSIX per-process timer
  172. timer_settime (2) - arm/disarm and fetch state of POSIX per-process timer
  173. timeradd (3) - timeval operations
  174. timerclear (3) - timeval operations
  175. timercmp (3) - timeval operations
  176. timerfd_create (2) - timers that notify via file descriptors
  177. timerfd_gettime (2) - timers that notify via file descriptors
  178. timerfd_settime (2) - timers that notify via file descriptors
  179. timerisset (3) - timeval operations
  180. timersub (3) - timeval operations
  181. times (2) - get process times
  182. timesyncd.conf (5) - Network Time Synchronization configuration files
  183. timesyncd.conf.d (5) - Network Time Synchronization configuration files
  184. timezone (3) - initialize time conversion information
  185. touch (1) - change file timestamps
  186. ts (1ssl) - Time Stamping Authority tool (client/server)
  187. tsget (1ssl) - Time Stamping HTTP/HTTPS client
  188. tzfile (5) - timezone information
  189. tzname (3) - initialize time conversion information
  190. tzselect (1) - view timezones
  191. tzselect (8) - select a timezone
  192. tzset (3) - initialize time conversion information
  193. uptime (1) - Tell how long the system has been running.
  194. utime (2) - change file last access and modification times
  195. utimes (2) - change file last access and modification times
  196. vcstime (8) - Show time in upper right hand corner of the console screen
  197. vtimes (3) - get resource usage
  198. xfs_rtcp (8) - XFS realtime copy command
  199. zdump (8) - timezone dumper
  200. zic (8) - timezone compiler

Please click on " man time " to see the Manual Page for this command.

Please click on " time in PDF " format.