03-10-2019
Hi Corona,
thanks for your answer, even if not using very nice words.
What I get out of it: Beware what unknown data can possibly and in worst case may do and especially in heavy interpreted shell environment.
---
The method was not - like you assumed - to get the full data out of the API, have it locally and pull the needed bits out locally. It was in short looking at the API the only way to get what I need. Digging deeper now into the api documentation revealed other ways to do the same more efficiently.
Maximum efficiency was not my goal. I started with a shell script and at about half completion of the task I realized that the task may be to complex for a shell script and it would have been better to use a scripting language. Now I have a 500 lines Bash script which is implemented fairly well structured and working quite well. I will not rewrite it again if there are not serious issues.
My intention with this question is/was to get feedback is if there are any serious problems I was not aware of.
Since all of that data is JSON data which will get fed into jq for extraction, I do not see much potential trouble ahead.
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RBASH(1) General Commands Manual RBASH(1)
NAME
rbash - restricted bash, see bash(1)
RESTRICTED SHELL
If bash is started with the name rbash, or the -r option is supplied at invocation, the shell becomes restricted. A restricted shell is
used to set up an environment more controlled than the standard shell. It behaves identically to bash with the exception that the follow-
ing are disallowed or not performed:
o changing directories with cd
o setting or unsetting the values of SHELL, PATH, ENV, or BASH_ENV
o specifying command names containing /
o specifying a filename containing a / as an argument to the . builtin command
o specifying a filename containing a slash as an argument to the -p option to the hash builtin command
o importing function definitions from the shell environment at startup
o parsing the value of SHELLOPTS from the shell environment at startup
o redirecting output using the >, >|, <>, >&, &>, and >> redirection operators
o using the exec builtin command to replace the shell with another command
o adding or deleting builtin commands with the -f and -d options to the enable builtin command
o using the enable builtin command to enable disabled shell builtins
o specifying the -p option to the command builtin command
o turning off restricted mode with set +r or set +o restricted.
These restrictions are enforced after any startup files are read.
When a command that is found to be a shell script is executed, rbash turns off any restrictions in the shell spawned to execute the script.
SEE ALSO
bash(1)
GNU Bash-4.0 2004 Apr 20 RBASH(1)