bashscriptwhile

Simple example using while. Here is an example for the impatient: #!/bin/bash # This script opens 4 terminal windows. i=0 while [ $i -lt 4 ] do xterm & i=$[$i ...

2024年1月2日 — A while loop is a control flow statement in Bash scripting that allows a certain block of code to be executed repeatedly as long as a specified ...

2017年7月10日 — while 會依據指定的檔案內容每次讀取一行(儲存在變數$line)等待處理.一直到檔案結束下面範例讀取/etc/passwd 檔案,並擷取部分資料出來.

2024年3月12日 — The bash while loop is a control flow statement that allows code or commands to be executed repeatedly based on a given condition. For example, ...

2023年12月6日 — While loops in Bash allow your script to perform tasks multiple times until a certain condition is met. They are a powerful tool for automating ...

2023年10月16日 — Step-by-Step Guide to Creating a Do While Loop in Bash · 1. Open a text editor of your choice. · 2. Start the script with the shebang line. #!/ ...

2023年7月17日 — In Bash scripting, file manipulation is an essential skill. Check out this blog post to learn how to read a file line by line using while ...

2023年7月20日 — The 'while' loop is another control flow statement that allows a block of code to be executed repeatedly based on a condition. Unlike the 'for' ...

2021年3月11日 — Linux scripting: 3 how-tos for while loops in Bash. Three examples of using while loops to manage conditions that do not have a known limit.

比如說我想要編輯一份文件，在文件中若出現關鍵字，我就需要根據那關鍵字查詢對應表，在接著將查到的結果插入該文件關鍵字那行之下，也是可以用while 來達成。