배우기를 멈추는 사람은 20세건 80세건 늙은 것이다.

import subprocess subprocess.call(['./test.sh']) [출처] https://stackoverflow.com/questions/3777301/how-to-call-a-shell-script-from-python-code

ps -fC java ps aux | grep java $ ps -fea|grep -i java pgrep -l java ps -ef | grep java ps -eaf | grep [j]ava [출처] https://stackoverflow.com/questions/6283167/list-of-java-processes

Aggregation Function 외에 모든 구문을 GROUP BY ~ 뒤에 포함 시켜야 한다. SELECT a, b, c, avg(d) FROM t GROUP BY a, b, c [출처] https://muyu.tistory.com/entry/Oracle-ORA00979-GROUP-BY-%ED%91%9C%ED%98%84%EC%8B%9D%EC%9D%B4-%EC%95%84%EB%8B%99%EB%8B%88%EB%8B%A4

yum -y install sendmail cd /etc/mail sendmail.mc # as-is 127.0.0.1 -- only localhost # to-be 0.0.0.0 -- anyone access # Connect: ${ip pattern} RELAY /etc/init.d/sendmail restart sudo systemctl start sendmail.service # CentOS 7 [출처] http://blog.naver.com/PostView.nhn?blogId=ghurm12&logNo=220636481450 https://blog.edit.kr/entry/sendmail%EA%B4%80%EB%A0%A8-%EC%9D%B4%EB%A9%94%EC%9D%BC-%EC%B6%94%EA%B0..

List result1 = new ArrayList(new HashSet(intList)); https://stackoverflow.com/questions/2235471/save-a-list-of-unique-strings-in-the-arraylist Save a list of unique Strings in the ArrayList I read data from a text file, so there may be: John Mary John Leeds I now need to get 3 unique elements in the ArrayList, because there are only 3 unique values in the file output (as above). I ... stackoverf..

brew install inetutils

// iBatis #value# // 'a' $value$ // a // MyBatis #{value} // 'a' ${value} // a [출처] https://logical-code.tistory.com/25 https://marobiana.tistory.com/60

brew install hadoop /usr/local/Cellar/hadoop/3.1.1/sbin/start-dfs.sh /usr/local/Cellar/hadoop/3.1.1/sbin/start-yarn.sh /usr/local/Cellar/hadoop/3.1.1/sbin/stop-dfs.sh /usr/local/Cellar/hadoop/3.1.1/sbin/stop-yarn.sh [출처] https://tariat.tistory.com/492

.line-break { word-break; } [출처] https://htglss.tistory.com/31

Issue Status: Failure - Test failed: Locale not recognized Solution SQL Developer > 패키지 내용 보기 Contents/Resources/sqldeveloper/sqldeveloper/bin/sqldeveloper.conf AddVMOption -Duser.language=ko AddVMOption -Duser.country=KR [출처] http://taewan.kim/tip/sqldeveloper_error_unrecog_locale/

import urllib.request url = "http://seunggabi.com" res = urllib.request.urlopen(url) print(res.status) [출처] https://korbillgates.tistory.com/210

window["functionName"](arguments); window["My"]["Namespace"]["functionName"](arguments); [출처] https://stackoverflow.com/questions/359788/how-to-execute-a-javascript-function-when-i-have-its-name-as-a-string

git revert HASH_OF_REVERT_COMMIT [출처] https://stackoverflow.com/questions/44207757/how-to-unrevert-a-previously-reverted-commit

try { SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss.SSS"); Date parsedDate = dateFormat.parse(yourString); Timestamp timestamp = new java.sql.Timestamp(parsedDate.getTime()); } catch(Exception e) { // this generic but you can control another types of exception // look the origin of excption } [출처] https://stackoverflow.com/questions/18915075/java-convert-string-to-times..

var iframe = document.getElementById('iframeId'); var innerDoc = iframe.contentDocument || iframe.contentWindow.document; [출처] https://stackoverflow.com/questions/1088544/get-element-from-within-an-iframe

// g: global // i: case-insensitive // m: multiline var patt = /w3schools/i [출처] https://www.w3schools.com/jsref/jsref_obj_regexp.asp