用来衡量网络稳定系数echo"False"return1fi#验证VNC端口,并等待端口开启local port_status=0until[$port_status-eq1 ];doport_status=$(sleep 1 | telnet${host_addr}${port}| grep Connected | wc
Using Sleep to Pause Execution of a Script You can use thesleepcommand in shell scripts to pause execution of the script for a precise amount of time. Typically, you'd do this to allow some process sufficient time to complete before the script continues its processing. You can also use it...
使用sleep命令结合kill命令:另一种方法是使用sleep命令等待指定的时间,然后使用kill命令终止正在执行的命令。可以使用以下语法: 其中,&符号将命令放入后台执行,$!获取最后一个后台进程的PID,sleep命令等待指定的时间,&&表示在sleep命令执行成功后执行kill命令,-9表示强制终止进程。 例如,要在脚本中使用sleep和kill命令超时...
Start: Checks if the server is running. If it isn't, attempts to update the server files & mods before starting the actual server. Stop(--force): Attempts to stop the server if it is indeed running. First, the script will send a "c_shutdown(true)" command to the running screen ses...
macOS 用户可以从 Bash 执行 AppleScript 解释器来显示本机通知,如下所示: #!/bin/bash sleep 10 osascript -e "display notification \"Task #1 was completed successfully\" with title \"notify.sh\"" GUI 通知对于通过长时间运行的脚本或永远运行的后台脚本向用户通知重要事件非常有帮助。 Bash 脚本中的并行...
/bin/bash echo "hello world" [wind@bogon ~]$ file a a: Bourne-Again shell script, ASCII text executable [wind@bogon ~]$ less 分段查看文件当我们要看很大的文件时,直接用vim打开是非常慢的,直接使用less可以很快打开,并且仍旧可以使用vim的快捷键,比如上下翻页,跳转文件头尾部,当然也可以 / 去查找...
ShellCheck - A shell script static analysis tool ShellCheck is a GPLv3 tool that gives warnings and suggestions for bash/sh shell scripts: The goals of ShellCheck are To point out and clarify typical beginner's syntax issues that cause a shell to give cryptic error messages. ...
Debian 重启服务 - Shell-Bash 代码示例 缓存您的登录凭据 - Shell-Bash 代码示例 代码示例1 I wanted a way to execute a piece of the script every hour within the bash script file that runs on crontab every 5 minutes without having to use sleep or rely fully on crontab. if the TIME_INTERVAL...
Similarly for example we can use while loop to check if file does not exists. This script will sleep until file does exists. Note bash negator "!" which negates the -e option. #!/bin/bash while [ ! -e myfile ]; do # Sleep until file does exists/is created ...
trap 属于bash的内置命令,所以查看帮助用: help trap, 如果用”man trap“则会跳出bash的帮助文档; trap命令的作用是:对捕获到的SIGNAL ,改变原有的处理action...而trap只是对其父进程起作用,而对父进程的子进程并不起作用,而B进程(sleep)属于A的父进程的子进程;所以trap命令无法对sleep命令的SIGINT起作用; ...