alias

Unix Bash Alias Command

由 ≡放荡痞女 提交于 2019-12-12 04:48:40
问题 I am trying to simplify my work with the help of Alias commands in my bash shell. Problem Statement: I want to copy different files from different directories to one single folder. The syntax i am using here is as below cp <folder>/<file> <path>/file.dir Here I want to save the destination file with filename.directory for easy identification. To achieve the same, I have written the below alias. Alias Script cp $Folder/$fileName ~/<path>/$fileName.$Folder OR cp $1/$2 ~/<path>/$2.$1 Expected

Accessing aliased tables

由 旧巷老猫 提交于 2019-12-12 04:34:40
问题 This question is wrong. I had some very big misunderstanding about how union works. I am reading about it now. edit 04.12.2016 If you are still intersted, you can go here Selecting the right column I have something like this with table3 as ( select t1.c1, t1.c2... from table1 t1 union all select t2.c1, t2.c2... from table2 t2 )select * from table3 I need to insert all rows from above in another table insert into table4 t4 ( t4.c1, t4.c2... ) select t3.c1, t3.c2... from table3 t3 My question

Can I force Yii to use particular alias in generated SQL

由 ╄→尐↘猪︶ㄣ 提交于 2019-12-12 04:09:49
问题 I'm retrieving my records using CActiveRecord with a with() statement: Probes::model()->with(array ( 'user', 'results', 'results.answer', 'survey', 'survey.questions' ))->findByPk($id) I wanted to use GROUP BY on question_id field of survey.questions relation, so I changed above to: 'survey.questions'=>array('group'=>'survey.questions.question_id'), This caused a SQL exception 1054 Unknown column . However, by analyzing attached SQL code: `questions`.`question_id` AS `t6_c2` I managed to find

MySQL - how to store results of GROUP BY for use in ON DUPLICATE KEY UPDATE

由 。_饼干妹妹 提交于 2019-12-12 03:38:30
问题 How do I fix the following query? My attempt to alias the result of the SELECT query into table tmp does not work. INSERT INTO vote_counts (list_id, node_id, num_down_votes) (SELECT vl.list_id, vl.node_id, COUNT(*) AS c FROM vote_logs vl WHERE vl.node_id=2442703 AND vl.agree_type='DOWN_VOTE' GROUP BY vl.list_id) tmp ON DUPLICATE KEY UPDATE num_down_votes = tmp.c; The vote_counts table has a unique key constraint on (list_id, node_id) . 回答1: If I'm not mistaken, this should work: INSERT INTO

Can Graphite (whisper) metrics be aliased?

由 。_饼干妹妹 提交于 2019-12-12 01:46:53
问题 There is a function named alias, that I tried as given below http://myhost:80/render?target=alias(my.src.metrics.endTime,"my.target.metrics.success_endTime") But I want to create my.target.metrics.success_endTime persistent in the graphite for my.src.metrics.endTime . so that new values under the my.src... are also available via my.target... . 回答1: However, you can't configure persistent aliases in graphite's UI (webapp), you may create symbolic link on the filesystem, that will behave like

Eloquent - How to use alias name in further multiple conditions?

由 孤人 提交于 2019-12-12 01:25:47
问题 In continuation to the question in the thread MYSQL How to perform custom month difference between two dates in MYSQL?, I tried to join the allowed_exp_range table only on condition with the derived "exp_in_months" result along with few other conditions. Below are the details. table_name = "user" id | name | join_date --------------------- 1| Sam | 25-11-2017 2| Moe | 03-04-2017 3| Tim | 04-07-2018 4| Sal | 30-01-2017 5| Joe | 13-08-2018 //$user_query is the eloquent query after chaining

Shell中Bash的基本功能(二)

由 不想你离开。 提交于 2019-12-11 23:25:49
1 历史命令 1）历史命令的查看 [root@localhost ~]# history [选项] [历史命令保存文件] 选项： -c： 清空历史命令 -w： 把缓存中的历史命令写入历史命令保存文件。如果不手工指定历史命令保存文 件，则放入默认历史命令保存文件~/.bash_history 中 [root@192 ~]# history 1 systemctl stop firewalld 2 systemctl disable firewalld 3 setenforce 0 4 getenforce 5 setenforce 0 6 getenforce 7 vim /etc/selinux/config 8 reboot 9 docker 10 docker ps -a 11 systemctl start docker 12 docker ps -a 13 docker rm cb26c27396e5 14 docker run -itd --name mongo -p 27017:27017 mongo --auth 15 docker exec -it mongo mongo admin 16 docker run -itd --name mongo1 -p 27017:27017 mongo 17 docker run -itd --name mongo1 -p

Incorrect LLVM alias analysis

由 孤街醉人 提交于 2019-12-11 21:31:41
问题 I'm asking a question similar to this post about an LLVM alias analysis that seems to give incorrect results. Since it contains considerable re-writing, I have decided to post it as a separate question. I'm running this very simple code: char *foo() { int i; int size; char *s=malloc(5); char *p=malloc(8); while ((i < size) && (s < p)) { i--; } return NULL; } Every time my code runs into an icmp instruction, I ask whether its operands can be aliases of one another. For the first comparison it

JS - Constructor referencing

由 泪湿孤枕 提交于 2019-12-11 21:31:17
问题 TLDR: How can you get the contents of a constructor/properties without actually knowing what it contains? Given the following: function f(args) { this.defaults { param1 : 100, param2 : 900; }; this.ranges { param1 : { min : 0, max : 500 }, param2 : { min : 0, max : 1000 }; }; } var myF = new f(); The defaults and ranges can be accessed through the myF.defaults.param1 and myF.ranges.param1.min calls. What if you do not know the name of the defaults or the ranges ? How can you get the names and

Alias <cmd> to “do X then <cmd>” transparently

由 喜夏-厌秋 提交于 2019-12-11 21:07:16
问题 The title sucks but I'm not sure of the correct term for what I'm trying to do, if I knew that I'd probably have found the answer by now! The problem: Due to an over-zealous port scanner (customer's network monitor) and an overly simplistic telnet daemon (busybox linux) every time port 23 gets scanned, telnetd launches another instance of /bin/login waiting for user input via telnet. As the port scanner doesn't actually try to login, there is no session, so there can be no session timeout, so
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