Bash脚本更改父shell目录

Question

我想做什么

我已经创建了一个shell脚本,我已添加到我的$ PATH中,它将下载并获取新Laravel项目的所有设置.我希望通过将终端目录更改为新项目文件夹来结束脚本.

根据我现在所理解的,它只是改变了脚本实际运行的子shell的目录.我似乎无法弄清楚如何做到这一点.任何帮助表示赞赏.谢谢!

#! /usr/bin/env bash

echo -e '\033[1;30m=========================================='

## check for a directory
if test -z "$1"; then
  echo -e ' \033[0;31m? Please provide a directory name'
  exit
fi

## check if directory already exist
if [ ! -d $1 ]; then
  mkdir $1
else
  echo -e ' \033[0;31m? The '"$1"' directory already exists'
  exit
fi

# move to directory
cd $1

## Download Laravel
echo -e ' \033[0;32m+ \033[0mDownloading Laravel...'
curl -s -L https://github.com/laravel/laravel/zipball/master > laravel.zip

## Unzip, move, and clean up Laravel
echo -e ' \033[0;32m+ \033[0mUnzipping and cleaning up files...'
unzip -q laravel.zip
rm laravel.zip
cd *-laravel-*
mv * ..
cd ..
rm -R *-laravel-*

## Make the /storage directory writable
echo -e ' \033[0;32m+ \033[0mMaking /storage directory writable...'
chmod -R o+w storage

## Download and install the Generators
echo -e ' \033[0;32m+ \033[0mInstalling Generators...'
curl -s -L https://raw.github.com/JeffreyWay/Laravel-Generator/master/generate.php > application/tasks/generate.php

## Update the application key
echo -e ' \033[0;32m+ \033[0mUpdating Application Key...'
MD5=`date +”%N” | md5`
sed -ie 's/YourSecretKeyGoesHere!/'"$MD5"'/' application/config/application.php
rm application/config/application.phpe

## Create .gitignore and initial git if -git is passed
if [ "$2" == "-git" ]; then
  echo -e ' \033[0;32m+ \033[0mInitiating git...'
  touch .gitignore
  curl -s -L https://raw.github.com/gist/4223565/be9f8e85f74a92c95e615ad1649c8d773e908036/.gitignore > .gitignore

  # Create a local git repo
  git init --quiet
  git add * .gitignore
  git commit -m 'Initial commit.' --quiet
fi

echo -e '\033[1;30m=========================================='
echo -e ' \033[0;32m? Laravel Setup Complete\033[0m'

## Change parent shell directory to new directory
## Currently it's only changing in the sub shell
filepath=`pwd`
cd "$filepath"

Answer 1

从技术上讲,source您可以在父shell中运行它,而不是生成子shell来运行它.这样,您对当前shell(包括更改目录)所做的任何更改都会保留.

source /path/to/my/script/script

要么

. /path/to/my/script/script

但采购有其自身的危险,请谨慎使用.

(外围相关:如何使用脚本来更改目录)

Answer 2

使用shell 函数来预读脚本

setup () {
  # first, call your big script.
  # (It could be open-coded here but that might be a bit ugly.)

  # then finally...

  cd someplace
}

将shell函数放在shell启动文件中.