In a nutshell, sleep command is one of the most powerful commands in bash script which when executed alone would mean meaningless, but in cases of re-trying or scheduling a job after some interval of time can bring wonders in the world of automation. You are encouraged to explore different ...
预期变量$SECONDS未更改，可以稍后使用。但是，在使用sleep后，该值实际上已更改。
使用sleep命令可以实现这种需求。 示例脚本loop_script.sh: #!/bin/bash for i in {1..5} do echo “循环次数:$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:...
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...
/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。
/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:...
1. Create a new script file in a text editor of choice: vim check_website.shCopy 2. Paste the following content: #!/bin/bash while : do if ping -c 1 www.google.com &> /dev/null then echo "Google is online" break fi sleep 10 ...
various purposes. Some uses of this command are shown in this tutorial using multiple examples such as displaying the animated text and digital clock, creating the alarm clock, etc. The method of using this command in the Bash script will be cleared for the Bash users after reading this ...
/bin/bash for i in {1..5} do echo "这是第 $i 次输出" sleep 5 done 常见问题及解决方法 sleep命令不生效:确保sleep命令的参数正确,并且脚本具有执行权限。 sleep命令暂停时间不准确:sleep命令的精度受系统时钟和调度器的影响,可能会有微小的误差。
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. ...