Blog archive in: 10월 2015

10월 2015

Uinx/Linux: Shebang과 env에 대한 설명 (#!/usr/bin/env)

Uinx/Linux: Shebang과 env에 대한 설명 (#!/usr/bin/env)

유닉스 계열의 Command Line에서 실행시키는 스크립트를 확인해보면 첫 줄에 " #! " 시작하는 코드가 있습니다. 영어로 "Shebang"이라고 하는데 한글로는 "쉬뱅"으로 전 읽는데 편하신데로 읽으시면…

PostgreSQL: INSERT, UPDATE, DELETE 실행 결과 리턴 받기 (WHEN / RETURNING)

PGSQL에서는 INSERT , UPDATE , DELETE 쿼리 실행 후 처리 ROWS만 알려주는데, 조금더 상세한 정보를 알수 있는 방법이 있습니다. INSERT , UPDATE , DELETE 쿼리 뒤에 RETURNING * 난 입력해주면 실행한 쿼리의 …

PostgreSQL: 정규표현식으로 한글 포함 여부 확인하기

PGSQL에서 정규식을 이용하여 한글이 포함된 텍스트인지 확인하는 방법입니다. 알파벳만 찾는 경우 " [a-z] " 입력하여 그 범위에 포함되는 모든 문자를 찾도록 합니다. 한글도 동일하게 첫 글자와 끝 글자를 입력하여 찾고자 하는 범위를 지…

유닉스/리눅스 배포판 계통도와 인기 순위 확인 방법

유닉스/리눅스 배포판 계통도와 인기 순위 확인 방법

유닉스 와 리눅스 의 역사는 위키백과에 잘 정리되어 있고 간략한 계통도 확인이 가능합니다. 그런데 그 동안 어떤 역사를 가지고 있었는지 더 자세한 계통도와 현재 인기도는 어떤지 확인할 수 있는 곳이 있어 소개합니다. 지금 소개하는 곳은 자신들만의 기준으로 주기적…

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