Ngiluthola kanjani usuku lokuqala lwenyanga e-Unix?
Usuku lokuqala lwenyanga luhlala lungolokuqala, ngakho-ke kulula:
- $ date -d “inyanga edlule” “+%Y/%m/01”
- 2016 / 03 / 01.
Ngiluthola kanjani usuku lokugcina lwenyanga yamanje e-Unix?
y=$(idethi '+%Y') # Thola unyaka wamanje m=$(idethi '+%m') # Thola inyanga yamanje ((m–)) # inyanga yokuncipha [[ ${m} == 0]] && ((y–)) # Uma inyanga uziro, unyaka wokwehla [[ ${m} == 0 ]] && m=12 # Uma inyanga uziro, setha kabusha ku-12 cal ${m} ${y} | awk 'NF{A=$NF}END{print A}' # Qalisa i-cal, bese uphrinta inkambu yokugcina yomugqa wokugcina ngezinkambu.
Ngiluthola kanjani usuku lwamanje ku-Unix?
Isampula yeskripthi segobolondo ukubonisa idethi yamanje nesikhathi
#!/bin/bash now=”$(date)” printf “Idethi yamanje nesikhathi %sn” “$now” now=”$(idethi +'%d/%m/%Y')” printf “Idethi yamanje ngefomethi ethi dd/mm/yyyy %sn” “$now” echo “Ukuqala ukwenza isipele kokuthi $manje, sicela ulinde…” # umyalo wokwenza isipele umbhalo ungene lapha # …
Ngiluthola kanjani usuku lokugcina lwenyanga ku-Linux?
Qala ngedethi yamanje ( usuku ) -> 2017-03-06. Setha lolo suku lube osukwini lokuqala lwenyanga yayo ( -v1d ) -> 1-2017-03. Susa usuku olulodwa kulokho ( -v-01d) -> 1-2017-02. Fometha idethi ( +%d%b%Y) -> 28Feb28.
Ngiyibonisa kanjani inyanga yamanje neyezayo ku-Unix?
Ungabonisa kanjani inyanga edlule, yamanje neyezayo ngokuhamba okukodwa? Imiyalo ye-cal/ncal futhi ubonise eyedlule, yamanje kanye nenyanga ezayo ezungeze namuhla. Ukuze wenze lokhu, udinga ukudlula -3 inketho yomugqa womyalo.
Uyini umphumela womyalo kabani?
Incazelo: ubani owayala ukuphuma imininingwane yabasebenzisi okwamanje abangene ngemvume ohlelweni. Okukhiphayo kuhlanganisa igama lomsebenzisi, igama letheminali (angena kulo), usuku kanye nesikhathi sokungena kwabo njll. 11.
Ngiyibonisa kanjani i-AM noma i-PM ngohlamvu oluncane ku-Unix?
Izinketho Ezihlobene Nokufometha
- %p: Iphrinta inkomba ye-AM noma ye-PM ngosonhlamvukazi.
- %P: Iphrinta inkomba ye-am noma pm ngofeleba abancane. Qaphela i-quirk ngalezi zinketho ezimbili. Ofeleba abancane u-p unikeza osonhlamvukazi abaphumayo, usonhlamvukazi u-P unikeza okukhiphayo ngofeleba abancane.
- %t: Iphrinta ithebhu.
- %n: Iphrinta umugqa omusha.
Imuphi umyalo osetshenziselwa idethi yamanje?
umyalo wosuku isetshenziselwa ukubonisa idethi yesistimu nesikhathi. umyalo wosuku nawo usetshenziselwa ukusetha idethi nesikhathi sohlelo. Ngokuzenzakalelayo umyalo wedethi ubonisa usuku endaweni yesikhathi lapho isistimu yokusebenza ye-unix/linux imiswa khona. Kufanele ube umsebenzisi omkhulu (impande) ukuze uguqule idethi nesikhathi.
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).
Imuphi umyalo ozobonisa unyaka kusukela kumyalo wedethi ku-Unix?
Izinketho zefomethi ye-Command ye-Linux
Lezi yizinhlamvu zokufometha ezivame kakhulu zomyalo wedethi: %D – Idethi yokubonisa njenge mm/dd/yy. %Y - Unyaka (isb, 2020)