Ukuthola isitembu sesikhathi samanje se-unix sebenzisa inketho ethi %s kumyalo wedethi. Inketho ethi %s ibala isitembu sesikhathi esingu-unix ngokuthola inombolo yamasekhondi phakathi kwedethi yamanje kanye nenkathi engu-unix.
Siyini isitembu sesikhathi samanje?
Irejista ekhethekile CURRENT TIMESTAMP (noma CURRENT_TIMESTAMP) iyacacisa isitembu sesikhathi esisekelwe ekufundweni kwewashi lesikhathi sosuku lapho isitatimende se-SQL sisetshenziswa kuseva yohlelo lokusebenza..
Ngisithola kanjani isikhathi se-bash se-Unix?
Thola isikhathi senkathi ye-UNIX usebenzisa i-bash
Ukuthola isikhathi se-UNIX epoch usebenzisa i-bash kulula. Sebenzisa umyalo wedethi yokwakha bese uyala ukuthi ukhiphe ifayela inombolo yamasekhondi kusukela ngo-1970-01-01 00:00:00 UTC. Ungakwenza lokhu ngokudlulisa iyunithi yezinhlamvu yefomethi njengepharamitha kumyalo wedethi. Iyunithi yezinhlamvu yefomethi ye-UNIX epoch time ithi '%s'.
Ngiluguqula kanjani mathupha usuku lube isitembu sesikhathi ku-Unix?
Guqula idethi ibe isitembu sesikhathi
Khetha iseli elingenalutho, ake sithi Cell C2, bese uthayipha le fomula =(I-C2-IDE(1970,1,1))*86400 kuyo bese ucindezela u-Enter key, uma udinga, ungasebenzisa ububanzi ngale fomula ngokuhudula isibambo sokugcwalisa okuzenzakalelayo. Manje ibanga lamaseli edethi seliguqulelwe laba izitembu zesikhathi ze-Unix.
Lungakanani usuku esitembuni sesikhathi se-UNIX?
Ukuguqulwa Kwesitembu Sesikhathi Se-Unix Esiwusizo
Iminithi elingu-1: imizuzwana engama-60. Ihora elingu-1: imizuzwana engu-3,600. Usuku olu-1: 86,400 imizuzwana.
Siyini isibonelo sesitembu sesikhathi?
Isitembu sesikhathi sincuzulwa kusetshenziswa izilungiselelo zokuhlaziya isitembu sesikhathi esimisiwe, noma ifomethi yangokwezifiso oyicacisayo, okuhlanganisa nendawo yesikhathi.
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Ukuhlaziya isitembu sesikhathi esizenzakalelayo.
| Ifomethi yesitembu sesikhathi | Isibonelo |
|---|---|
| MM/dd/yyyy HH:mm:ss ZZZZ | 10/03/2017 07:29:46 -0700 |
| HH:mm:ss | 11:42:35 |
| HH:mm:ss.SSS | 11:42:35.173 |
| HH:mm:ss,SSS | 11:42:35,173 |
Siyini ifomethi lesi sitembu sesikhathi?
Ifomethi ezenzakalelayo yesitembu sesikhathi esiqukethwe kuyunithi yezinhlamvu ithi yyy-mm-dd hh:mm:ss. Nokho, ungacacisa iyunithi yezinhlamvu zefomethi ozikhethela yona echaza ifomethi yedatha yenkambu yeyunithi yezinhlamvu.
Ngisithola kanjani isitembu sesikhathi?
Ungasithola kanjani isitembu sesikhathi samanje ku-java
- Udale into ye-Date class.
- Uthole isikhathi samanje ngama-millisecond ngokushayela i-getTime() indlela yedethi.
- Udale into yekilasi le-Timtestamp futhi wadlulisela ama-millisecond esiwathole esinyathelweni sesi-2, kumakhi waleli klasi ngesikhathi sokudala into.
Ulubonisa kanjani usuku lwamanje njengosuku olugcwele lweviki e-Unix?
Kusukela ekhasini lomyalo wedethi:
- %a – Ibonisa igama lendawo elifushanisiwe losuku lwesonto.
- %A – Ibonisa igama lendawo eligcwele phakathi nesonto.
- %b – Ibonisa igama lenyanga elifushanisiwe lendawo.
- %B – Ibonisa igama lenyanga eligcwele lendawo.
- %c – Ibonisa usuku olufanele lwendawo kanye nesethulo sesikhathi (okuzenzakalelayo).
Mangaki amasekhondi inkathi?
I-Epoch
| Isikhathi sesikhathi | I-Epoch yesibili elinganayo |
|---|---|
| Iminithi ye-1 | 60 |
| 1 ihora | 3600 |
| 1 usuku | 86400 |
| Iviki le-1 | 604800 |
Ngisithola kanjani isikhathi samanje ku-terminal ye-Linux?
Ukubonisa idethi nesikhathi ngaphansi kwesistimu yokusebenza ye-Linux usebenzisa umyalo sebenzisa umyalo wedethi. Ingase futhi ibonise isikhathi samanje / usuku ku-FORMAT enikeziwe. Singasetha idethi yesistimu nesikhathi njengomsebenzisi wezimpande futhi.
Ngisishintsha kanjani isitembu sesikhathi ku-Unix?
Isitembu sesikhathi se-UNIX siyindlela ukulandelela isikhathi njengesamba esisebenzayo samasekhondi. Lokhu kubala kuqala ku-Unix Epoch ngoJanuwari 1, 1970.
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Guqula isitembu sesikhathi sibe idethi.
| 1. | Kuseli elingenalutho eduze kohlu lwakho lwesitembu sesikhathi bese uthayipha le fomula =R2/86400000+IDETHI(1970,1,1), cindezela ukhiye u-Enter. |
|---|---|
| 3. | Manje iseli lisodethi efundekayo. |
Ingabe isitembu sesikhathi se-Unix siyi-UTC?
Izitembu zesikhathi ze-Unix zihlala zisekelwe ku-UTC (okungenjalo kwaziwa nge-GMT). Akunangqondo ukucabanga ngesitembu sesikhathi se-Unix njenganoma iyiphi indawo yesikhathi ethile. Izitembu zesikhathi ze-Unix azibali imizuzwana ye-leap. … Ngokwesiko, izitembu zesikhathi ze-Unix zazichazwa ngokwamasekhondi aphelele.
Yenzani isikhathi i-Command ku-Linux?
Umyalo wesikhathi uthi esetshenziselwa ukunquma ukuthi umyalo onikeziwe uthatha isikhathi esingakanani ukusebenza. Kuwusizo ukuhlola ukusebenza kwezikripthi zakho nemiyalo.
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Ukusebenzisa i-Linux Time Command
- okwangempela noma okuphelele noma okudlulile (isikhathi sewashi yasodongeni) isikhathi kusukela ekuqaleni kuye ekupheleni kocingo. …
- umsebenzisi - inani lesikhathi se-CPU esichithwe kumodi yomsebenzisi.