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- linux.vbird.org
  
  鳥哥的Linux 私房菜-- 學習Shell Scripts
  
  2009年2月18日 - 如果你真的很想要走資訊這條路，並且想要管理好屬於你的主機，那麼，別說鳥哥不告訴你，可以自動管理系統的好工具： Shell scripts！這傢伙真的 ...
  
  2025-11-18
  
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- linux.vbird.org
  
  鳥哥的 Linux 私房菜 -- 一些 Linux 系統的基礎問題
  
  Multitask 指的是多工環境，在 Linux 系統下， CPU 與其他例如網路資源可以同時進行多項工作， Linux ... 在環境變數當中，『使用者家目錄、主機名稱』的變數名稱為： HOME, HOSTNAME 如何讓一個變數可以持續到下一個程序 (PID) 去 ...
  
  2025-11-21
  
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Date math in Linux shell script? | Ask Dave Taylor

日期：2025-11-19

Within a Linux shell script to be used as a cron job, how do I calculate the current date, the current date – n days, and the current date + n days ? This script is to be used to partition an oracle database, and automatically drop old partitions (n+1) an...

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how to get output string parameter from Java to shell script (Linux / UNIX forum at JavaRanch)

日期：2025-11-20

Hi, Does anyone know how to get output string parameter from Java to shell script. which means when shell script execute a java with input string par ... Not really a String per se, but you can get at the output stream of the script process; that's pretty...

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Shell script to perform operations like compare string, concatenate, find length, occurrence of word

日期：2025-11-23

Code, Example for Shell script to perform operations like compare string, concatenate, find length, occurrence of word in a string and reverse a string in Unix / Linux ... Other Interesting Articles in Unix / Linux / Ubuntu: Write a shell program to conca...

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UNIX/Linux Bash Shell Scripting: Shell Script to Check Whether a String is Palindrome or not

日期：2025-11-22

#!/bin/bash # SCRIPT: palindrome2.sh # USAGE: palindrome.sh or palindrome.sh STRING # PURPOSE: Script to test if a given string is a palindrome. # # In this script I uses the well known method, compare first character # with last character, up to middle o...

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Shell script to find the length of a string | Programming in Linux

日期：2025-11-20

awk has a built in function called length with which you can find the length of a string. The following shell script shows how to find the length of the string with awk #!/bin/sh #Shell script to find the length of the string string="Joys of Programming" ...

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HowTo: Reverse a String In Unix / Linux Shell?

日期：2025-11-18

Explains how to reverse a string under Linux or Unix like operating system using command, perl, and bash shell script. ... Python equivalent: echo foo | python -c 'import sys;print(sys.stdin.read().strip()[::-1])' python -c 'import sys;print(sys.stdin.rea...

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linux - How to compare strings in Bash script - Stack Overflow

日期：2025-11-22

I need to compare a variable to some string (and do something if they match). ... Good point, when applied in other languages. It makes little sense here: assigning the string would need to lose the quotes, the $ and replace the "==" with "=" ....

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How to check NULL in a string in Shell Script ? | Open Source Blog - Java,Python,Linux

日期：2025-11-23

Jan 3 How to check NULL in a string in Shell Script ? The following code snippet will tell whether a string is null or not . VALUE= if [ ! -n "$VALUE" ]; then echo "null"; else echo "String is not null" fi Posted 3rd January 2011 by Srikrishnan's Blog for...

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