Sh while 死循环
WebApr 9, 2024 · Nash’s revelation about Crosby’s second battle with Covid-19 is a reminder that you can get Covid-19 even though you’ve had it before. Although the details of Crosby’s latest battle haven ... WebDec 4, 2024 · 版权声明： 本文内容由阿里云实名注册用户自发贡献，版权归原作者所有，阿里云开发者社区不拥有其著作权，亦不承担相应法律责任。 具体规则请查看《阿里云开发者社区用户服务协议》和《阿里云开发者社区知识产权保护指引》。 如果您发现本社区中有涉嫌抄袭的内容，填写侵权投诉表单进行 ...
Sh while 死循环
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Web例如，while循环执行一个命令直到给的条件保持为真；until循环执行一个命令知道条件为真。 一旦你有了良好的编程实践，你将获得专业知识，从而在不同的情况下使用适当的循环方法。在这里，while和for循环普遍于其它的编程语言，比如C，C++和PERL等等。 while循环 WebApr 9, 2024 · Nash’s revelation about Crosby’s second battle with Covid-19 is a reminder that you can get Covid-19 even though you’ve had it before. Although the details of Crosby’s …
Webwhile 循环是 Shell 脚本中最简单的一种循环，当条件满足时，while 重复地执行一组语句，当条件不满足时，就退出 while 循环。. condition 表示判断条件， statements 表示要执行 … WebNov 24, 2024 · No string can be equal to both of them, which whould end your loop. You can also use a pattern in [ [ ... ]]: #!/bin/bash echo "Please enter your choice (stringA or stringB): " read result while ! [ "$ {result,,}" = 'stringa' -o "$ {result,,}" = 'stringb' ]; do echo Please enter only stringA or stringB: read result done echo "You have selected ...
http://c.biancheng.net/view/1006.html WebJul 14, 2024 · Setup a script, run.sh: $ cat run.sh while true; do sleep 15 ; echo "background"; done & while true; do sleep 12 ; echo "foreground"; done ... We can see that the while loop that's guarding our background sleep 15 process has done its job and restarted another sleep 15. Share. Improve this answer.
WebMar 11, 2009 · Hi, I have a problem I don't understand with fuser. I launch a simple shell script mysleep.sh: I launch the command fuser -fu mysleep.sh but fuser doesn't return anything excepted: mysleep: Then I modify my script switching from #!/bin/sh to #!/bin/ksh I launch the command fuser -fu... (4 Replies)
WebMar 27, 2024 · 18.7 while循环 #While循环用于不断执行一系列命令，也可用于从输入文件中读取数据，其格式为： while 命令 do 命令1 命令2 ... done #虽然通常只是用一个命令， … income restricted apartments near me 77379WebOct 25, 2024 · 但是普通的for或do while循环都是串行执行的，脚本耗时每个循环耗时*循环次数，在较大规模实施或者目标语句耗时较长的情况下，串行方式的循环脚本执行时间也不容忽视。 要减少执行串行循环的耗时，自然要考虑如何用并行方式解决。 income restricted apartments oviedo flWebbash shell 死循环 在linux shell脚本中，如何编写死循环? 死循环(无限循环)是一组无休止一直执行的指令。由于循环没有终止条件，或者有一个永远无法满足的条件，导致这些指令一 … income restricted apartments mansfield txWebSep 5, 2024 · I am trying to do multi condition check i.e., the input should not be empty and it should contain only numbers in while loop in Shell Script but i am facing multiple errors while trying to perform this operation. income restricted apartments kent waWebJan 14, 2016 · 为了让docker容器一直运行难道要写个死循环的程序？. @jokester 我的入口进程就启动lnmp服务，然后就结束了。. 在这里可以看出docker的运行状态,,up的就是一直运行,exit就是跑完了就退出了~docker跑完了你要它执行的任务就会退出~所以你得写个持续的命令. 如果你想 ... income restricted apartments longwood flWeb我们在循环体外部定义一个监听器monitor，并开始计时。. 循环每执行一次，monitor就会累积执行的次数并根据计时时间和次数判断该循环是否为死循环。. 循环结束后再删除monitor。. 由此我们可以定义一个InfiniteLoopController，专门处理循环，我在这里设置是如果循环 ... income restricted apartments marietta gaWebMay 2, 2024 · while使用重定向机制，ip.txt文件中的信息都已经读入并重定向给了整个while语句，所以当我们在while循环中再一次调用read语 句，就会读取到下一条记录。问 … income restricted apartments kansas city mo