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While loop to test if a file exists in bash

...an do this: file=/tmp/list.txt while [ ! -f "$file" ] do inotifywait -qqt 2 -e create -e moved_to "$(dirname $file)" done This reduces the delay introduced by sleep while still polling every "x" seconds. You can add more events if you anticipate that they are needed. ...
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ImageView 扩展:图片查看器扩展,支持缩放、双击缩放和动画缩放 · App In...

... Q: 如何设置初始缩放比例? Q: 支持哪些图片格式? Q: 如何处理图片加载失败? Q: 缩放操作会影响性能吗? Q: 可以同时使用多个 ImageView 实例吗? 版本信息 技术备注 ...
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php中json_decode()和json_encode()的使用方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...e()json_decode(PHP 5 >= 5.2.0, PECL json >= 1.2.0)json_decode — 对 JSON 格式的字符串进行编码说明mixed jso...1.json_decode() (PHP 5 >= 5.2.0, PECL json >= 1.2.0) 对 JSON 格式的字符串进行编码 说明: mixed json_decode ( string $json [, bool $assoc ] ) 接受一...
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Jackson overcoming underscores in favor of camel-case

... one qq: when i use snake_case naming strategy will the json files with underscores be deserialized to camel case? – Ram Patra Aug 5 '16 at 23:28 ...
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C/C++中的段错误(Segmentation fault) - C/C++ - 清泛网 - 专注C/C++及内核技术

...nted_chars =0 ,i ;   unsigned char *chptr ;   va_list ap ; %s格式控制部分: case 's':    chptr =va_arg (ap ,unsigned char *);    i =0 ;    while (chptr [i ])    {...    cnt_printed_chars ++;    putchar (chptr [i ++]...
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Logstash实践: 分布式系统的日志监控 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...ect,Enrich和Transport的行为在配置文件中定义。配置文件的格式有点像json,又有点像php。 3.3. 编写Shipper角色的配置文件:shipper.conf input { file { path => [ # 这里填写需要监控的文件 "/data/log/php/php_fetal...
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How to mkdir only if a directory does not already exist?

... The old tried and true mkdir /tmp/qq >/dev/null 2>&1 will do what you want with none of the race conditions many of the other solutions have. Sometimes the simplest (and ugliest) solutions are the best. ...
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LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...创建一些特殊的集。列表如下: 隐式成员列表格式 示例 所产生集成员 1..n 1..5 1,2,3,4,5 StringM..StringN Car2..car14 Car2,Car3,Car4,…,Car14 DayM..DayN Mon..Fri ...
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What is the difference between the add and offer methods in a Queue in Java?

... q.offer(b); boolean is6 = q.offer(b); System.out.println("qq::"+q); – Raj Nov 20 '18 at 12:15 Thanks,...
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Vim: insert the same characters across multiple lines

...d would then repeat it. Put your cursor on the first letter in name. Hit qq to start recording into the q buffer. Hit i to go into insert mode, type vector_, and then hit Esc to leave insert mode. Now hit 0 to go back to the beginning of the line. Now hit j to go down. Now hit q again to stop reco...