dd this to the beginning of the script: set-e This will cause the shell to exit immediately if a simple command exits with a nonzero exit value. A simple command is any command not part of an if, while, or until test, or part of an && or || list. See thebash(1) man pageon ...
output=$(some_command) if [ $? -ne 0 ]; then echo "Command failed" fi # ShellCheck建议 # SC2181: Check exit code directly with e.g. 'if mycmd;', not indirectly with $. # 修改后 if ! output=$(some_command); then echo "Command failed" fi 通过上述例子,我们可以看到ShellCheck如何...
sh -n scriptname不会运行脚本, 只会检查脚本的语法错误. 这等价于把set -n或set -o noexec插入脚本中. 注意, 某些类型的语法错误不会被这种方式检查出来. sh -v scriptname将会在运行脚本之前, 打印出每一个命令. 这等价于把set -v或set -o verbose插入到脚本中. 选项-n和-v可以同时使用.sh -nv scr...
echo"Command failed"fi # ShellCheck建议 #SC2181:Check exit code directlywithe.g.'if mycmd;',not indirectlywith$.# 修改后if!output=$(some_command);then echo"Command failed"fi 通过上述例子,我们可以看到ShellCheck如何帮助识别和修正常见的shell编程错误,从而提高脚本的质量和可维护性。这些例子仅仅是Shel...
skill="Java"echo"I am good at ${skill}Script" 如果不给 skill 变量加花括号,写成echo “I am good at $skillScript”,解释器就会把 $skillScript 当成一个变量(其值为空),代码执行结果就不是我们期望的样子了。 推荐给所有变量加上花括号{ },这是个良好的编程习惯。
The 5 Steps To Debug a Script in Bash Step 1: Use a Consistent Debug Library Step 2: Check For Syntax Error Step 3: Trace Your Script Command Execution Step 4: Use The Extended Debug Mode Step 5: Provide Meaningful Debug Logs A Complete Example ...
Invoke-Command–ScriptBlock {Do-Something–Credential (Get-Credential) }-ComputerNameLON-DC1 此命令將在遠端電腦上執行Get-CredentialCmdlet。 如果您嘗試在本機電腦上執行Get-Credential,則將使用圖形化對話方塊來提示輸入認證。 問題:該命令在遠端電腦上執行時仍會運作嗎? 例如,...
Tab(to previous script)CTRL+SHIFT+TABNote:Tab to previous script works when you have only one PowerShell tab open, or if you have more than one PowerShell tab open, and the focus is in the Script Pane. 自定義檢視的鍵盤快捷方式
If I open a Terminal window and “open” the command file the same thing happens.. But if I run it directly like ./commandFile the program runs. I am hoping to spare a Mac user that unfamiliar chore. You mention there are "various techniques that let you package a shell script as a...
The shell script is executed properly What do you see instead? /bin/sh: /Applications/My: No such file or directory Applications/My Application.app/Contents/tools/myScript.sh failed: Error: Exit with error code: 127 Additional information ...