# remove the last character in string and return it in $rval if [ -z "$1" ]; then # empty string rval="" return fi # wc puts some space behind the output this is why we need sed: numofchar=`echo -n "$1" | wc -c | sed 's/ //g' ` if [ "$numofchar" = "1" ]...
#!/bin/sh # vim: set sw=4 ts=4 et: help() { cat < xtitlebar -- change the name of an xterm, gnome-terminal or kde konsole USAGE: xtitlebar [-h] "string_for_titelbar" OPTIONS: -h help text EXAMPLE: xtitlebar "cvs" HELP exit 0 } # in case of error or if -h is giv...
switch ("Test") { {$_ -is [String]} { "Found a string" } "Test" { "This $_ executes as well" } } Output 複製 Found a string This Test executes as well 下列範例會處理包含兩個日期值的陣列。 會 <value-scriptblock> 比較每個日期的 Year 屬性。 會顯示 <action-scriptblock> 歡迎訊...
function TrapTest { trap { "Error found: $_" } nonsenseString } TrapTest 執行此版本的函式會傳回下列輸出: Output 複製 Error found: The term 'nonsenseString' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if...
#<string>索引標籤- 搜尋 的*<string>*歷程記錄,並傳回最新的相符專案。 如果您重複按Tab鍵,它會迴圈查看歷程記錄中的相符專案。 注意 這些索引鍵系結是由主機應用程式實作。 其他應用程式,例如 Visual Studio Code 或 Windows 終端機,可以有不同的按鍵系結。 PSReadLine 模組可以覆寫系結。 當您啟動PowerShe...
若要取得特定 Cmdlet 的說明,請輸入: PowerShell複製 Get-Help<cmdlet-name> 展開資料表 指令程式名稱Description Clear-Variable刪除變數的值。 Get-Variable取得目前主控台中的變數。 New-Variable建立新變數。 Remove-Variable刪除變數和它的值。 Set-Variable變更變數的值。 另請參閱...
String test options case statement while loop break and continue for loop Arrays concept How to create arrays How to access arrays Examples Shell Script Functions How to define a function Varibale scopes Return statement break vs exit vs return How to call functions present in another script ...
The name of the program to be used for text editing. SHELL The name of your shell program. HOME The pathname of your home directory. LANG Defines the character set and collation order of your language. OLD_PWD The previous working directory. PAGER The name of the program to be used for...
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...
11.1 Shell Script Basics(Shell 脚本基础) Bourne shell scripts generally start with the following line, which indicates that the /bin/sh program should execute the commands in the script file. (Make sure that no whitespace appears at the beginning of the script file.) ...