打开一个bash脚本到busybox的脚本 [英] Turning a bash script into a busybox script

问题描述

我的工作，只有具有busybox的（灰？），不支持bash的设备上。不过，我需要在其上运行下面的bash脚本。是否有可能或busybox的根本不支持脚本？

 ＃！/斌/庆典域=mydomain.com
记录=11019653
API_KEY =key1234IP =$（卷曲http://ipecho.net/plain）回声内容=$（卷曲\\
    -k \\
    -H授权：承载$ API_KEY\\
    -H内容类型：应用程序/ JSON\\
    -d{数据：'$ IP'}'\\
    -X PUThttps://api.digitalocean.com/v2/domains/$domain/records/$record）
 

解决方案

有是在脚本中没有任何问题，可以在灰打破。

好了，除非你正在做的回声内容=...。这将在输出打印的字内容= 加入到命令的引号中的输出。

如果你想设置一个变量的值，然后打印出来，这样做：

 ＃！/ bin中/灰域=mydomain.com
记录=11019653
API_KEY =key1234IP =$（卷曲http://ipecho.net/plain）内容=$（卷曲\\
-k \\
-H授权：承载$ API_KEY\\
-H内容类型：应用程序/ JSON\\
-d{数据：'$ IP'}'\\
-X PUThttps://api.digitalocean.com/v2/domains/$domain/record/$record）回声$内容
 

该计划的busybox将作为外壳名字由灰联行动：

  LN -s /斌/ busybox的/ bin中/灰
 

甚至在你的present目录（或测试一个）：

  LN -s /斌/ Busybox的ash
 

然后，您可以通过键入启动 ./灰分如果在PWD，或灰分如果在一个PATH目录。如果你愿意，你可以从中测试命令和脚本，或者使用bash作为你的shell，并开始与灰script.sh 或脚本（更好）。 /script.sh 如果该文件的她，爆炸是＃！/ bin中/灰

I am working on a device that only has busybox (ash?) and does not support bash. However, I need to run the bash script below on it. Is it possible or busybox simply does not support scripts?

#!/bin/bash

domain="mydomain.com"
record="11019653"
api_key="key1234"

ip="$(curl http://ipecho.net/plain)"

echo content="$(curl \
    -k \
    -H "Authorization: Bearer $api_key" \
    -H "Content-Type: application/json" \
    -d '{"data": "'"$ip"'"}' \
    -X PUT "https://api.digitalocean.com/v2/domains/$domain/records/$record")"

解决方案

There is no issue in your script that could break in ash.

Well, except that you are doing echo content="....". That will print in the output the word content= joined to the output of the command in quotes.

If you want to set the value of a variable and then print it, do:

#!/bin/ash

domain="mydomain.com"
record="11019653"
api_key="key1234"

ip="$(curl http://ipecho.net/plain)"

content="$(curl \
-k \
-H "Authorization: Bearer $api_key" \
-H "Content-Type: application/json" \
-d '{"data": "'"$ip"'"}' \
-X PUT "https://api.digitalocean.com/v2/domains/$domain/record/$record")"

echo "$content"

The program busybox will act as a shell if linked with the name ash:

ln -s /bin/busybox /bin/ash

Even in your present directory (or a test one):

ln -s /bin/busybox ash

Then, you could start it by typing ./ash if in the PWD, or ash if in a PATH directory. You could test commands and scripts from it if you wish, or use bash as your shell and start scripts with ash script.sh or (better) ./script.sh if the she-bang of the file is #!/bin/ash

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