PowerShell 有一組 Cmdlet,可管理命令歷程記錄。 展開資料表 CmdletAliasDescription Get-Historyh取得命令歷程記錄。 Invoke-Historyr在命令歷程記錄中執行命令。 Add-History將命令新增至命令歷程記錄。 Clear-Historyclhy從命令歷程記錄中刪除命令。 管理歷程記錄的鍵盤快捷方式 ...
还可以访问其他属性,例如ScriptStackTrace、Exception和ErrorDetails。 例如,如果我们将脚本更改为以下内容: PowerShell try{ NonsenseString } catch {Write-Host"An error occurred:"Write-Host$_.ScriptStackTrace } 结果将类似于: An Error occurred: at <ScriptBlock>, <No file>: line 2 ...
inside the script, we can get: The numbers of arguments: $# The script name: $0 The first argument: $1 The second argument: $2 All arguments: $* or $@. With $@, we get space between each two argments $1 $2, with $* we get special character between each two characters $1c$...
After creating a shell script and setting its permissions, you can run it by placing the script file in one of the directories in your command path and then running the script name on the command line. You can also run ./script if the script is located in your current working directory,...
11String comparisons 12File comparisons The concept of a Bash script is to run a series of Commands to get your job done. To run multiple commands in a single step from the shell, you can type them on one line and separate them with semicolons. ...
Can be used to extend oroverride settings in the global configuration script. 文件 内容 /etc/bash.bashrc 应用于所有用户的全局配置文件。 ~/.bashrc 用户个人的启动文件。可以用来扩展或重写全局配置脚本中的设置。 In addition to reading the startup files above, non-login shells also inherit the...
Get-ChildItemuses theDirectoryparameter to get all the directory names for theC:\drive. The objects are sent down the pipeline toJoin-String. ThePropertyparameter script block uses automatic variable ($_) to specify each object'sNameproperty substring. The substring gets the first four letters of...
wc.py- Line, word, character counting webviewer.py- Open a url in the webbrowser wget.py- get data from the net whatis.py- Show a description for some of the commands which.py- Find the exact path to a command script wol.py- Wake on LAN using MAC address for launching a sleeping...
It's not uncommon to need a quick pause in a script. For example, say you need to start a service, wait a few seconds for it to get up and running, and then perform some other tasks that depend upon that service. Start-Sleep is exactly what you need for this behavior. Running Star...
The underscore character needs to appear in quotes, and the backslash is used before each of the quotes to escape those quotes (because the entire string appears within a set of double quotes).exec_sql.sh. As mentioned earlier, it is possible to query the database from a shell script ...