bash.md

Shell

• Bash Reference Manual

• Bash 입문자를 위한 핵심 요약 정리 (Shell Script)

• Bash shell script 가이드

• Bash Koans

• Full vim for readline (bash, gdb, python, etc)

• Code Inflation

• joinc

• Python Scripts as a Replacement for Bash Utility Scripts

• Three Ways to Script Processes in Parallel

• Sh! Silence your bash scripts by coding your own --silent flag

• Safe ways to do things in bash

• Source code listing for the Lions' Commentary in PDF and PostScript

• #testing #bash 간단한 assert

• Functional and flexible shell scripting tricks

• 6 Bash Tricks You Can Use Daily. Work smarter, not harder at the Linux… | by Al Williams | For Linux Users | Sep, 2020 | Medium

• bash : 기초 : 셸의 역사, 종류 profile 참고

• 5분 따라하기 bash 타임아웃 패턴

• 5분 따라하기 bash에서 파일 확장자 변경

• Anybody can write good bash (with a little effort)

• When did I run that command? Update your Bash prompt with the command start time

• Systems programming with bash and Python 3

• Take care editing bash scripts

• 9 Evil Bash Commands Explained - Andreas Müller - Medium

• shell script 파일 주석을 그대로 도움말로 사용하기

• How Bash Works. Understanding how shell scripting works… | by Jasmine Humbert | Better Programming | Medium

• This Will Make You a Command-Line Ninja | by Erik van Baaren | Towards Data Science

• A Simple Productivity Hack Using Bash Scripts | by Sebastian Scholl | The Startup | Medium

• Upgrading Bash on macOS. One thing that many macOS users don’t… | by Daniel Weibel | ITNEXT

• (리눅스 업스킬 도전 #20) 셸 스크립트

• 13 Tips & Tricks for Writing Shell Scripts with Awesome UX | by Joseph Matthias Goh | codeburst

• Create a machine learning model with Bash | Opensource.com

• Minimal safe Bash script template | Better Dev

• Become shell literate

• Bash tips for everyday at the command line | Opensource.com

• Writing Safe Shell Scripts

  • 안전한 쉘 스크립트 작성하기 | GeekNews

• How to navigate directories faster with bash

• What exactly was the point of [ “x$var” = “xval” ]? – Vidar's Blog

• bash parameter expansion

  • ${var}, ${#var}, ${var/bear/panda}, ${var:-othervar}, ${var:?some error}, ${var#pattern}, ${var%pattern}, ${var:offset:length}

• argument

  • practice - multiple arguments
  • bash pass multiple arguments with spaces
  • bash 에서 인자 처리 하기

• array

  • practice
  • 10.2. Array variables
  • Bash: convert command line arguments into array

• bc

  • echo "100 / 3" | bc -l or bc -l <<< '100 / 3' How do I use floating-point division in bash?
  • echo $1 + $2 | bc Addition of two floating point numbers using shell script

• dictionary, hash table

  • How to define hash tables in Bash?

• expr

  • Performing Math calculation in Bash

• flock(1) - Linux manual page

  • Ensuring that a shell script runs exactly once - DEV

• for

  • practice - for loop string array
  • 배시 셸 스크팁트 프로그래밍(bash shell script programming)
  • Linux bash. for loop and function, for adding numbers
  • for i in $(seq -f "$02g" 1 20); do echo $i; done How to zero pad a sequence of integers in bash so that all have the same width?

• popd

• pushd

• quote

  • 쉘에서 따옴표 안에 같은 종류의 따옴표 넣기

• stdin

  • practice - multiple stdin to bash variable
    • How to read mutliline input from stdin into variable and how to print one out in shell(sh,bash)?
    • Bash script, read values from stdin pipe

• string

  ${#VAR_NAME} string length
  ${VAR_NAME##*[delimiter]} remove before delimiter
  ${VAR_NAME%[delimiter]*} remove after delimiter
  

  • practice - split by tab

  • practice - substring, removal, length, char replace

  • example

    $ TEST=some_string.ext
    $ echo ${TEST##*_}
    string.ext
    $ echo ${TEST%.*}
    some_string
    
    $ cat my_script.sh
    THE_DAY_BEFORE_YESTERDAY=`date '+%Y%m%d' --date '2 days ago'`
    YYYYMMDD=${1:-$THE_DAY_BEFORE_YESTERDAY}
    echo $YYYYMMDD
    echo ${YYYYMMDD:6:8}
    echo ${YYYYMMDD::${#YYYYMMDD}-2}
    $ ./my_script.sh
    20170116
    16
    201701
    

  • Advanced Bash-Scripting Guide: Chapter 10. Manipulating Variables

  • if [[ $string = *"My long"* ]]; then String contains in Bash

  • uppercase first character in a variable with bash

    • ${foo^} capitalize
    • ${foo^^} uppercase all the letters
    • ${foo,} lowercase only the first letter
    • ${foo,,} lowercase all the letters

  • [ -z "$var" ] && ... || ... Test for non-zero length string in Bash

  • Escaping strings in Bash using !:q | Simon Willison’s TILs

• miscellaneous

  • CUR_DIR=$(readlink -f $(dirname $(readlink -f ${BASH_SOURCE[0]}))) current directory

• while

  • 쉡 스크립트 반복문 (while)

Library

• Alternative Shells · oilshell/oil Wiki
• abs | Home of the ABS programming language: the joy of shell scripting
  • Introducing ABS, a programming language for shell scripting | by Alex Nadalin | freeCodeCamp.org | Medium
• aviary.sh: Minimal distributed configuration management in bash
• BASH with Debugger and Improved Debug Support and Error Handling
  • BASH Debugger | GeekNews
• bashhub - Bash History in the Cloud
• Bash Infinity - a standard library and a boilerplate framework for writing tools using bash
• Bash Quick References
• bashttpd - a simple, configurable web server written in bash
• commit.sh: Generate commit message according to AngularJS Commit Message Conventions
• import - a simple and fast module system for Bash and other Unix shells
• osh Four Features That Justify a New Unix Shell
• ShellCheck finds bugs in your shell scripts
  • shellcheck: ShellCheck, a static analysis tool for shell scripts
  • 쉘 스크립트를 만드는 당신, ShellCheck을 써라!
  • Lessons learned from writing ShellCheck, GitHub’s now most starred Haskell project – Vidar's Blog
    • ShellCheck를 만들면서 배운 것들 | GeekNews
• Sherlock.py - transpiler that translate python to shell script language
• tsk-tsk: TSK - The Scripting Kit
• zenity How to Modernize Your Bash Scripts By Adding GUI | by Shalitha Suranga | The Startup | Sep, 2020 | Medium
• zx: A tool for writing better scripts
  • ZX - Javascript로 쉘스크립트 작성하기 | GeekNews

TDD, Test

• ShellSpec | BDD unit testing framework for shell scripts (bash, ksh, zsh, dash and all POSIX shells)

Tutorial

• Learn Shell - Free Interactive Shell Tutorial