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")"
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