如何编写 BASH 脚本以在 Mac 上下载和解压缩文件？
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How do I write a BASH script to download and unzip file on a Mac?
提问by alecwhardy
I need to create a bash script that will work on a mac. It needs to download a ZIP file of a site and unzip it to a specific location.
我需要创建一个可以在 Mac 上运行的 bash 脚本。它需要下载站点的 ZIP 文件并将其解压缩到特定位置。
- Download the ZIP file (
curl -O) - Unzip the files to a specific location (
unzip filename.zip path/to/save) - Delete the .zip file
- 下载 ZIP 文件 (
curl -O) - 将文件解压缩到特定位置 (
unzip filename.zip path/to/save) - 删除 .zip 文件
I need to make it so people can double-click the text file on their desktop and it will automatically run in terminal.
我需要这样做，以便人们可以双击桌面上的文本文件，它会自动在终端中运行。
How do I make it so that the user can double click the icon on the desktop and it will run? What extension does the file need?
如何使用户可以双击桌面上的图标并运行？文件需要什么扩展名？
回答by zed_0xff
OSX uses the same GNU sh/bash as Linux
OSX 使用与 Linux 相同的 GNU sh/bash
#!/bin/sh
mkdir /tmp/some_tmp_dir && \
cd /tmp/some_tmp_dir && \
curl -sS http://foo.bar/filename.zip > file.zip && \
unzip file.zip && \
rm file.zip
the first line #!/bin/shis so called "shebang" line and is mandatory
第一行#!/bin/sh是所谓的“shebang”行，是强制性的
回答by ruario
BSD Tar can open a zip file and decompress through a stream.The -S flag is to follow redirects and -L to show up any errors. So the following will work:
BSD Tar 可以打开一个 zip 文件并通过流解压缩。 -S 标志是跟随重定向和 -L 显示任何错误。所以以下将起作用：
curl -SL http://example.org/file.zip | tar -xf - -C path/to/save
回答by ecwpz91
If you do not want change directory context, use the following script:
如果您不想更改目录上下文，请使用以下脚本：
#!/bin/bash
unzip-from-link() {
local download_link=; shift || return 1
local temporary_dir
temporary_dir=$(mktemp -d) \
&& curl -LO "${download_link:-}" \
&& unzip -d "$temporary_dir" \*.zip \
&& rm -rf \*.zip \
&& mv "$temporary_dir"/* ${1:-"$HOME/Downloads"} \
&& rm -rf $temporary_dir
}
Usage:
用法：
# Either launch a new terminal and copy `git-remote-url` into the current shell process,
# or create a shell script and add it to the PATH to enable command invocation with bash.
# Place zip contents into '~/Downloads' folder (default)
unzip-from-link "http://example.com/file.zip"
# Specify target directory
unzip-from-link "http://example.com/file.zip" "/your/path/here"
Output:
输出：
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 17.8M 100 17.8M 0 0 22.6M 0 --:--:-- --:--:-- --:--:-- 22.6M
Archive: file.zip
inflating: /tmp/tmp.R5KFNvgYxr/binary
