When you execute a command or run a script, you receive anexit code. An exit code is a system response that reports success, an error, or another condition that provides a clue about what caused an unexpected result from your command or script. Yet, you might never know about the code,...
(If n is omitted, the exit status is that of the last command executed. ) 格式:$? 上一个命令的退出码。 格式:trap "commands" EXIT 退出时执行commands指定的命令。( A trap on EXIT is executed before the shell terminates.) 退出码(exit status,或exit code)的约定: 0表示成功(Zero - Success...
While ShellCheck is mostly intended for interactive use, it can easily be added to builds or test suites. It makes canonical use of exit codes, so you can just add ashellcheckcommand as part of the process. For example, in a Makefile: check-scripts:# Fail if any of these files have w...
Often when writing Bash scripts, you will need to terminate the script when a certain condition is met or to take action based on the exit code of a command. In this article, we will cover the Bash exit built-in command and the exit statuses of the executed commands....
Write a Bash script that executes a command and prints its exit status code. Code: #!/bin/bash # Command to execute command_to_execute="ls /new_dir" # Execute the command $command_to_execute # Get the exit status code exit_status=$?
自定义安装参数:对于某些应用程序,winget允许你使用自定义安装参数以满足特定需求。你可以在安装命令中指定选项和参数来自定义安装过程。...你将能够从Git Bash、命令提示符和Windows PowerShell中使用Git,并且可以在PATH中寻找Git的任何第三方软件。...尽管该功能还存在已知的错误,但它提供了更好的控制台支持。如果...
Get the location 代码语言:javascript 代码运行次数:0 运行 AI代码解释 script_dir=$(cd"$(dirname "${BASH_SOURCE[0]}")"&>/dev/null&&pwd-P) 这行代码尽其所能定义脚本的位置目录,然后我们对其进行cd配置。为什么? 通常,我们的脚本在相对于脚本位置的路径上运行,复制文件并执行命令,假设脚本目录也是一个...
如果你的脚本是这样,那么你尝试启动 `./script.sh` 并且 `script.sh` 应该和原来的在同一个目录下,它会失败,因为你已经不在了。另见:http://stackoverflow.com/questions/4774054/reliable-way-to-get-the-full-path-to-a-bash-script (2认同) 即使使用`bash`,`$0` 也并不总是足够的。一个脚本可能...
格式:-X <command> 或--request <command> 说明:-X 参数允许用户显式指定要使用的 HTTP 方法(如 GET、POST、PUT、DELETE 等)。如果不使用 -X 参数,curl 默认使用 GET 方法。 示例: curl -X POST http://www.example.com/api/data 在这个例子中,curl 会向目标 URL 发送一个 POST 请求。 区别总结 功...
Exit status 0 An exit status of 0 is the best possible scenario, generally speaking. It tells you that your latest command or script executed successfully. Success is relative because the exit code only informs you that the script or command executed fine, but the exit code doesn't tell you...