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SHELL

範例與常用技巧

檔頭常用宣告 Use Bash Strict Mode # quickly syntax set -euo pipefail # let script exit if a c...

grep

教學網站 http://www.cyberciti.biz/faq/grep-regular-expressions/ https://www.ubuntupit.com/practic...

test

字串或文字的比對 Str1 = str2 | 當str1與str2相同時, 傳回True Str1 != str2| 當str1與str2不同時, 傳回True Str1 < Str...

awk

教學網站 https://linuxhandbook.com/awk-command-tutorial/ Running Awk in parallel to process 256M ...

sed

教學網站 http://www.tecmint.com/linux-sed-command-tips-tricks/ https://www.cyberciti.biz/faq/how-...

Sample Scripts

Auto-rar.sh 解壓縮多個分割檔案 (*.part0XX.rar) #!/bin/bash echo "-> Started: "`date +%m/%d/%y\ %H:...

Regex 正規表示式

教學網站 https://likegeeks.com/regex-tutorial-linux/ http://overapi.com/regex https://regexper.c...

管理與操作

查出目前使用哪種 SHELL ps -p $$ echo $0 echo $SHELL 執行 SHELL 的方式 sh file . file source file 常用鍵盤...

Function Samples

清理目錄裡的 *.gz 檔案 用法: KEEP=100 CleanUp /path/to/dir CleanUp() { dest="$1" if [ $dest ];t...

dialog

selection.sh #!/bin/bash # while-menu-dialog: a menu driven system information program DIA...

Array 陣列

Learning Bash Scripting – Indexed Array Explained With Examples Bash Scripting – Associative ...

Learning SHELL

7 Bash tutorials to enhance your command line skills in 2021 Top 10 Free Resources to Learn Sh...

String Manipulation 字串處理

字串長度 my_string="abhishek" echo "length is ${#my_string}" Using expr str="my string" length=$...

loop

for loop for i in var1 var2 var3; do echo $i; done for ((i=1;i<=10;i++)); do echo $i; done for...

顯示進度 progress

範例:簡易版 echo -ne '&gt;&gt;&gt; [20%]\r' # some task sleep 2 echo -ne '&g...

find

檔案名稱 # Find all *.bak files in the current directory and removes them with confirmation find . ...

uniq

uniq 與 sort 一起使用時,可以控制那些重複的資訊。 基本操作 $ cat file2 ChhatrapatiShahuMaharaj Dr.B.R.Ambedkar Budh...

date

Shell 範例 # Sample today=$(date +%Y/%m/%d) NOW=`date "+%Y/%m/%d %H:%M:%S"` eval `date "+day=...

Parallel and Multi-thread

GNU Parallel Official: https://www.gnu.org/software/parallel/ Download: http://ftp.gnu.org/gnu/p...

mail

Installation sudo apt install mailutils # [On Debian, Ubuntu and Mint] sudo yum install ...

Perl

Tutorials Useful One-Line Scripts for Perl Useful One-Line Scripts for Perl (簡中)

lsof

Network Port What process is using the port 50000 lsof -i :50000 lsof -i :https lsof -i t...

算術

let #!/usr/bin/env bash let NUMBER1=10 let NUMBER2=3 # Addition => + operator let ADD=$N...

Diagrams

Linux Shell Lifecycle

ANSI Color

高亮文字 highlight() { mode=$1 string="$2" case "$mode" in red) echo ...