{"action":"created","issue":{"url":"https://api.github.com/repos/bokkypoobah/ClubEth/issues/1","repository_url":"https://api.github.com/repos/bokkypoobah/ClubEth","labels_url":"https://api.github.com/repos/bokkypoobah/ClubEth/issues/1/labels{/name}","comments_url":"https://api.github.com/repos/bokkypoobah/ClubEth/issues/1/comments","events_url":"https://api.github.com/repos/bokkypoobah/ClubEth/issues/1/events","html_url":"https://github.com/bokkypoobah/ClubEth/issues/1","id":324676109,"number":1,"title":"Beginner questions","user":{"login":"zemingyu","id":20302618,"avatar_url":"https://avatars3.githubusercontent.com/u/20302618?v=4","gravatar_id":"","url":"https://api.github.com/users/zemingyu","html_url":"https://github.com/zemingyu","followers_url":"https://api.github.com/users/zemingyu/followers","following_url":"https://api.github.com/users/zemingyu/following{/other_user}","gists_url":"https://api.github.com/users/zemingyu/gists{/gist_id}","starred_url":"https://api.github.com/users/zemingyu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/zemingyu/subscriptions","organizations_url":"https://api.github.com/users/zemingyu/orgs","repos_url":"https://api.github.com/users/zemingyu/repos","events_url":"https://api.github.com/users/zemingyu/events{/privacy}","received_events_url":"https://api.github.com/users/zemingyu/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2018-05-20T01:53:01Z","updated_at":"2018-05-20T02:05:27Z","closed_at":null,"author_association":"NONE","body":"1. In settings.txt there is ```IPCFILE=ipc:./testchain/geth.ipc```\r\nWhat is IPC? How does it differ from ```geth --dev```?\r\n\r\n2. What's the purpose of ```INCLUDEJS, JSONSUMMARY``` and ```JSONEVENTS``` in 01test1.sh?\r\n\r\n3. What does perl -le do?\r\n```CURRENTTIMES=`perl -le \"print scalar localtime $CURRENTTIME\"```\r\n\r\n4. What's does ```1:-test``` do? Does $ means it's a environment variable?\r\n```MODE=${1:-test}```\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/bokkypoobah/ClubEth/issues/comments/390452300","html_url":"https://github.com/bokkypoobah/ClubEth/issues/1#issuecomment-390452300","issue_url":"https://api.github.com/repos/bokkypoobah/ClubEth/issues/1","id":390452300,"user":{"login":"bokkypoobah","id":17121975,"avatar_url":"https://avatars1.githubusercontent.com/u/17121975?v=4","gravatar_id":"","url":"https://api.github.com/users/bokkypoobah","html_url":"https://github.com/bokkypoobah","followers_url":"https://api.github.com/users/bokkypoobah/followers","following_url":"https://api.github.com/users/bokkypoobah/following{/other_user}","gists_url":"https://api.github.com/users/bokkypoobah/gists{/gist_id}","starred_url":"https://api.github.com/users/bokkypoobah/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bokkypoobah/subscriptions","organizations_url":"https://api.github.com/users/bokkypoobah/orgs","repos_url":"https://api.github.com/users/bokkypoobah/repos","events_url":"https://api.github.com/users/bokkypoobah/events{/privacy}","received_events_url":"https://api.github.com/users/bokkypoobah/received_events","type":"User","site_admin":false},"created_at":"2018-05-20T02:05:27Z","updated_at":"2018-05-20T02:05:27Z","author_association":"OWNER","body":"3. \r\n\r\n```CURRENTTIME=`date +%s`\r\nCURRENTTIMES=`perl -le \"print scalar localtime $CURRENTTIME\"````\r\n\r\nThe first line computes the number of seconds since 01/01/1970 (search for 'unixtime')\r\n```$ date +%s\r\n1526781849```\r\n\r\nThe second line computes the string equivalent of the unixtime variable\r\n```$ perl -le \"print scalar localtime 1526781849\"\r\nSun May 20 12:04:09 2018```"}}
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