/bin/bash# start timedate+"%H:%M:%S"# sleep for 5 secondssleep5# end timedate+"%H:%M:%S" 让我们看一个更高级的例子。 #!/bin/bashwhile:doifping-c1ip_address&>/dev/nullthenecho"Host is online"breakfisleep5done 上面的脚本将每隔5秒检查一次主机是否在线,当主机在线时,该脚本将通知您并停止。
预期变量$SECONDS未更改，可以稍后使用。但是，在使用sleep后，该值实际上已更改。
I'm writing a small module in PHP to integrate Adobe Connect functionalities into Drupal 7.x. One of the features I was asked to implement is the possibility to add guests to a given protected meeting... Extend dynamic object with signature index in TypeScript ...
/bin/bash echo "Starting the script..." sleep 2 echo "Two seconds have passed." sleep 5m echo "Five minutes have passed." sleep 1h echo "One hour has passed." 遇到的问题及解决方法 问题:sleep命令没有按预期暂停 原因: 可能是由于系统负载过高,导致sleep命令的执行时间不准确。
for i in {1..5} do echo “循环次数:$i” sleep 3s done 在命令行中执行该脚本: $ bash loop_script.sh 输出结果: 循环次数:1 (等待3秒) 循环次数:2 (等待3秒) 循环次数:3 (等待3秒) 循环次数:4 (等待3秒) 循环次数:5 脚本中的代码会执行5次循环,每次循环都会先执行echo命令,然后等待3秒再...
This will pause the script/shell for one minute. If you want to delay the script in hours, you can do that with the h option: sleep 2h Even if you want to pause the bash script for days, you can do that with the d suffix: ...
/bin/bash echo “Starting the script…” sleep 3 echo “3 seconds have passed.” “` 在这个示例中,脚本将输出”Starting the script…”,然后等待3秒,最后输出”3 seconds have passed.”。 ### 示例4:循环中使用Sleep命令 Sleep命令也可以用于循环中,以创建时间间隔。以下是一个示例:...
Example 5: Simulate a Digital Clock Using the “sleep” Command in Linux To simulate a digital clock using the sleep command, just write a simple bash script with shebang as the first line and execute that script. After the execution, you will see a display clock on your terminal. Go th...
How to Use the sleep Command Bash Script Examples Conclusion Share: sleep is a command-line utility that allows you to suspends the calling process for a specified time. In other words, the sleep command pauses the execution of the next command for a given number of seconds. ...
How can I have a simple bash script run during sleep? The script is pinging a machine on the network every 5 seconds, and if it is online, it will wake the computer from sleep. Is this possible on Ubuntu 18? bash scripting suspend sleep Share Improve this question Follow asked Nov 24...