리눅스 date

1 개요[ | ]

리눅스 date
/bin/date

시스템 날짜, 시간을 출력 또는 변경하는 리눅스 명령어
만약 리눅스 환경변수 $TZ가 설정되어 있으면 시스템 시간대 설정보다 우선적 적용된다.

따라서 특별한 경우가 아니라면 리눅스 환경변수 $TZ는 설정하지 않는 것이 좋을 것 같다.

2 실행예시 1[ | ]

[root@zetawiki ~]# date
Tue Mar 11 22:15:33 KST 2014

[root@zetawiki ~]# date '+%F %T'
2014-03-11 22:15:33

[root@zetawiki ~]# date +%F
2014-03-11

[root@zetawiki ~]# date --date 'today'
Thu May 14 22:28:34 KST 2015
[root@zetawiki ~]# date --date '1 week ago'
Thu May  7 22:28:39 KST 2015
[root@zetawiki ~]# date --date '3 years ago 1 week ago'
Mon May  7 22:29:02 KST 2012

3 실행예시 2: LANG[ | ]

[root@zetawiki ~]# LANG=ko_KR.UTF-8 date
2014. 03. 11. (화) 22:15:33 KST

[root@zetawiki ~]# LANG=fr_FR.UTF-8 date
mar. mars 11 22:15:33 KST 2014

4 포메팅 옵션[ | ]

Format option	Part of Date	Desciption	Example Output
date +%a	Weekday	Name of weekday in short (like Sun, Mon, Tue, Wed, Thu, Fri, Sat)	Mon
date +%A	Weekday	Name of weekday in full (like Sunday, Monday, Tuesday)	Monday
date +%b	Month	Name of Month in short (like Jan, Feb, Mar )	Jan
date +%B	Month	Month name in full short (like January, February)	January
date +%d	Day	Day of month (e.g., 01)	04
date +%D	MM/DD/YY	Current Date; shown in MM/DD/YY	02/18/18
date +%F	YYYY-MM-DD	Date; shown in YYYY-MM-DD	2018-01-19
date +%H	Hour	Hour in 24-hour clock format	18
date +%I	Hour	Hour in 12-hour clock format	10
date +%j	Day	Day of year (001..366)	152
date +%m	Month	Number of month (01..12) (01 is January)	05
date +%M	Minutes	Minutes (00..59)	52
date +%S	Seconds	Seconds (00..59)	18
date +%N	Nanoseconds	Nanoseconds (000000000..999999999)	300231695
date +%T	HH:MM:SS	Time as HH:MM:SS (Hours in 24 Format)	18:55:42
date +%u	Day of Week	Day of week (1..7); 1 is Monday	7
date +%U	Week	Displays week number of year, with Sunday as first day of week (00..53)	23
date +%Y	Year	Displays full year i.e. YYYY	2018
date +%Z	Timezone	Time zone abbreviation (Ex: IST, GMT)	IST

5 같이 보기[ | ]

6 참고[ | ]

https://www.tutorialkart.com/bash-shell-scripting/bash-date-format-options-examples/